Hi David
wanted to reply, but Joe et al. have pretty much summed it up. I agree wholeheartedly. There are a few comments I would like to make nonetheless. I sense you want to get your hands involved in your car. I think that is great! I have done everything on my car from start to finish, and it has been fun. With regrds to the paint: I have not sprayed PPG, or some of the other newer paints, but I painted my car in 1991 with Glasurit line 21 single stage paint. Then the car sat for 18 years neglected in the corner of my garage and served the local mouse community as shelter. From the picture I have enclosed you can see that it has held up amazingly...no chalking, fading, chipping, bubbling or lift anywhere. Cool thing is, when I bought the new line 22 color for a couple of touchups (kids dinged a couple of spots), I could order a mix straight off the shelf and it blended amazingly. Glasurit colorsands easily, is very hard, and polishes beautifully. It's expensive, but you get what you pay for. I would highly recommend it. If you want to get real fancy, go two stage, but I think the single stage offers a beautiful level of shine.
Do the prep, learn to spray with the primer, then trace coat it and sand out the tracer, then prime again until it's perfect. By the time you get to the topcoat, you will have learned a lot. I did it, and have not regretted it in the least. Be prpeared though, if you expect perfect you ought to get a pro to shoot the topcoat in a paint booth; otherwise, no matter how careful you are in a garage, you will get some dust inclusions and an occasional fisheye. No big deal though, as most of it can be sanded out easilyt if you use a solid color.