You CAN paint your own car. I paint all my own cars and I taught myself how to do it, and I do it in my garage. There is a lot to this stuff though. It is not for the faint of heart and it is something that you will have to commit yourself to do and do right. All it takes is one screw up and you just wasted hundreds, if not thousands of dollars of paint, and you'll be sanding it off and doing it over.
I taught myself just by reading articles and write-ups on the net as well as watching youtube videos.
Check out DIYautoschool on Youtube, as well as SWRNC. Both Youtube channels are done by the same guy and he is a bit rowdy to say the least but he explains a lot of the techniques and really goes over EVERYTHING you could possibly run into or ever need to know about doing bodywork and paint. Seriously, he has so many videos that you could just watch them for a couple weeks. Take notes. You need to read and spend a lot of time watching videos to get your head wrapped around what you need to do and how to do it successfully.
The BIGGEST thing you need is a 2 stage air compressor. I use a Ingersoll Rand 60 gallon that I bought at Lowe's. You are not going to want to spray with anything smaller than that. It is able to pump the air in faster than I can use it and that is very important... If you try to paint your car and your air compressor takes longer to refill itself than it takes you to empty it by spraying your paint, you are going to have major problems. Your paint is going to dry while you have to stand there and wait on the compressor to pump back up and your paint job is going to look like crap because you end up with dry spots. You want to be quick enough so that basically ALL the paint is drying at the same time.
You are going to be painting a very large car so you are going to have to be QUICK as well as thorough. Practice by priming your car. Primer is much cheaper than paint and you can get a feel for what you'll need to do when it's time to paint. Make a plan. You have to think about stuff like: Sweat dripping off your body. Hairs falling into the paint. Dust from your shop blowing up and into your work. Hoses being drug across your paint. Condensation from your air compressor, lines, or in your gun, WILL spray out if you do not have water traps. Those are simple stupid little things that can completely RUIN your paint job.
Your best bet is to completely disassemble the car and paint it in batches. It'll be a lot easier and come out a lot better if you are painting different parts as opposed to trying to paint the whole car together. Plus you'll be able to get in all the nook and crannies MUCH better. You have to make sure everything is set up the same when you do that though. Different air pressure can make the same paint 2 different colors.
There are so many possibilities and variables of things that CAN go wrong. You have to prepare for those and do everything you can to minimize the chances for disaster.
DO NOT SAND YOUR CAR BY HAND. ALWAYS use a block. Buy yourself a full set of Durablock flexible blocks. Criss cross as you sand.
I advise you buy a cheap but good set of HVLP guns and practice practice practice.
http://www.ebay.com/itm/Devilbiss-S...1438662504&pt=Motors_Automotive_Tools&vxp=mtr - Those are good guns to start with. You CAN do a very good job with those.
TCP Global sells decent quality supplies. I've used their base coat paints, their clear coats, and their 2K primer with good results. You can buy just about everything through them
http://www.ebay.com/itm/1-Gal-KIT-2...1512776467&pt=Motors_Automotive_Tools&vxp=mtr - That is some very good primer. You can buy it directly from TCP Global. Not crazy expensive but if you mix it right, spray it right, you will get good results. It's a high build primer. Very thick. You mix it up VERY good, add the hardener, and spray at recommended pressures. It'll stick great to properly sanded and cleaned body fill, paint, or bare metal.
And as for paint, I would NOT advise you shooting enamel, or single stage urethane, or any crap like that. You want to do a base coat clear coat paint job. People think it is just easier to do a single stage paint but bull-crap. It is not. It's a pain in the ***. You are going to want to do the base coat clear coat FOR SURE. It's so easy to do and do right. It looks 1000 times better when it's done. And it is 1000 times easier when you are able to color sand and buff the clear coat down flat to get rid of any dust or orange peel that WILL happen.
I'm not going to keep going on and on about this, I'm just trying to steer you in the right direction. Unless you have a heated shop, you are going to want to wait until the weather warms up anyway. DO NOT try and spray anything when it is below 70 degrees. I only prime, paint, or even do bodywork when the weather is above 70 degrees. The materials will not "flow out" properly if it is cold. So look at it like you have ALL WINTER LONG to read, watch, and learn how to do the job.
If you do as I recommend and read all about it plus sit there and watch the videos I recommended, you will answer your own questions. If you aren't 100% committed to doing this right, DO NOT DO IT!!! Just pay someone to paint your car. If you do not already have a compressor that is big enough, you might consider just having someone paint the car for you because that 1 piece alone is going to cost you.
This is one of the cars I did in my garage last year....
Before:
After paint:
And here's one I did this year....
Before:
After:
And the build thread here has some info on it including bodywork, and paint info:
http://www.forbbodiesonly.com/moparforum/showthread.php?81535-She-s-a-keeper!-72-Plymouth
And here's another one I built this year.
The only single stage paint that is OK by me is the satin or flat colors like this
I hope that gives you some ideas and helps. WATCH THOSE VIDS! DIYautoschool and SWRNC - It's a great place to start.
Good luck to you. If you want to, any of you guys can message me for info. I'll do my best to help.