I have painted a couple cars, and am painting a '65 pickup for a friend right now. You didn't really list what you do/don't have, but I think the biggest constraint I have run up against is the compressor. I have an older industrial compressor that puts out about 8 cfm or so. I plumbed an air system in my shop so that I wouldn't have to worry about water in the air, and I borrow a small construction compressor to add to my system so that I can make it through a coat without waiting for it to catch up. I bought a really nice DA sander, and a really nice lvlp gun, but both use tons of air (like 13 cfm or so). I have played with some different paints, but I like Omni, a cheaper PPG line for the kind of stuff you are looking at. You can get everything from epoxy primer to clear in Omni, and it is pretty good bang for the buck. Base/clear is the only way to go in my opinion; its easy to shoot, easy to fix, easy to make look great.
Without details, I would kind of proceed this way.
1. Start with taking down anything where you need filler to metal, and doing the filler work.
2. If your paint isn't broken, don't fix it; only grind off paint completelyt if it is having adhesion problems. Otherwise, just scuff it.
3. Paint the whole thing with Epoxy primer in white.
4. I really like the MP282 Hi-build primer(grey), sands real nice. 4 coats or until you are out.
5. Guide coat and wet block sand with 220 until your hands fall off.
6. If you are happy, prep for paint, if not another round of hi-build.
7. Thin epoxy primer 10% and use it as a sealer.
8. Base coat until coverage plus 1 coat.
9. Clear coat-and thin it more than the tech sheets call for, like 15% more or so. The tech sheets are written for VOC regs, not for nice smooth paint.
I would expect to spend around 1k for materials doing it this way. I used autobodystore forums a lot, and my local jobber for paint. Hope that helps. J