Its harder than you think. But if you want to try it, go for it. If you're spraying it in your garage your going to get a lot of dirt in the clear and it will need to be sanded out with 1500 grit and polished. I bought a paint gun from harbor freight tools for $50 and it sprays great. you'll need a big enough air compressor to keep up with your spray gun. Mine is 5 hp 30 gallon and it keeps up fine so far. You'll need to wash the car real good, sand the entire car with 600 grit by hand or 320 grit w/ a DA sander. wash the car again, clean w/ wax and grease remover that you can pick up from a paint supply store. Mask off everything. This is one the most important steps because you can spend hours trying to remove all the overspray, so take your time. Clean one more time w/ wax and grease remover and you're ready to spray.

I'd recommend buying a manual on paint and body work. I've seen them at Pep Boys for around $12. And you'll need a high speed polisher to polish your sand scratches out after nib sanding the dirt form your clear. Is that enough info. One more thing, your going to need a paint filter for your gun to keep dirt and moisture from the air compressor from getting onto your paint.