It's your car do whatever you want with it, it'll probaly be fine until you get traction.
It doesn't take long to dump a ton of money into a car....especially if you have to have others work on it and even when you do your own work, it's still not cheap.
Had the same thoughts over 30 years ago.....before anyone had the internet. Now it's even easier to get info on how to do things. It turned out to be pretty easy and especially so since I was a machinist with access to dial indicators etc. Setting backlash is the easier part vs setting pinion depth and having the right spanner wrench for the side adjusters but a lot of people just use a hammer and punch for that which I hate to see. When I got started it was hard to find a shop that would even consider doing one let alone know how so I ended up learning because of necessity and the next thing I know, people are coming to me to do theirs and it went down hill from there. Now I'm an old fart and just can't lift that 80 lb chunk like I used to could. I can still swap one out in a car using a floor jack but it's trying to put it up on a bench that gets me. I could hang a hoist in my assembly room but I just don't do that many anymore....
