I hate to be the harbinger of 'bad news/reality', but, welding is an art, it's not just 'picked up'. There is science to it, many disciplines and methods/techniques. I had the great opportunity to go the the US Army Ordnance Center and School for 44B, then, 44E, Metalworker and Machinist respectively. We started off with Oxy/Acetylene in all positions, all materials, and all types of welds, we had to master all these, when we were good enough; usually after about 5 days a week, 10 hrs a day for 2 weeks we could move up to Arc; same methods and procedures and techniques; same type of welds; Butt, Lap, Plug, etc. When we mastered this with all the types of rods; 6010, 6011, 6012(?), 7018, we did some 'playing' with some stainless and some aluminum -- but were not held to standard on those welds -- very difficult to master that! Then, we went to Mig; same o'le same ole, but, we also did Aluminum 1" plate, by this time, we were 3 months into our welding; and about 4 sets of uniforms later (all burned up) we felt like we were making progress! Then, once we 'mastered' Mig, we went into Tig! Stainless, Steel, Aluminum in all positions, methods, etc. Talk about focus, and welding your *** off! When were done, they told us we now know the basics and are competent to weld in the field, but we need to maintain these newly acquired skills as they can fade, well they do fade! I tried to Tig a few yrs ago, I fooked up something wicked!
But, as you learn, you learn to turn the heat up as much as you can, weld as fast as you can, and keep a border-line disaster in check; meaning run hot torches = better penetration etc. So, this needs to go in the column to get as much machine as you can afford, get the best you can for the $$ you have, but never ever get a Harbor Freight POS.
I am scared to think what rank beginners will do to their sheetmetal on their cars, please, people do only what you can do...sheetmetal is not too forgiving. You can cover it with Bondo, and, anyone familiar with my posts knows that you can not hide **** from me when I'm media blasting stuff clean; I see it all.
I will accept pay pal donations for my advice, :monkeydance::monkeydance:, haha!
Good luck in your purchase!