Don't fear the paint grasshopper, BE the paint.
Bet you had never driven a rivet before you started this project, so why not learn to paint too? Do this and you will never look at car paint jobs the same again. Most factory jobs are pretty bad, Porsche is amazing.
Yes, I painted my plane and it came out pretty well. Sure, there are goofs, but the average person sees the "whole". The one thing I never want to do again is strip paint. That was brutal.
I used Sherwin-Williams Ultra 7000 auto paint. Top of the line base-coat/clear-coat system. Quite pricy (especially red, which is always the case) but well documented and the local shop would actually talk to me, as opposed to the Dupont/PPG shop.
Basecoat is incredibly easy to put on (and take off if necessary), and the clear can be sanded and buffed to remove runs, orange peel, etc.
The key, as noted by others, is to PRACTICE before shooting a plane part. (Use black, shows defects best and is cheap). The auto guys suggest getting some hoods from the wrecking yard as practice pieces. Browse
www.autobody101.com for general knowledge and tips. I have the painting 101 DVD if you want it. Pay shipping and promise to pass it along to the next newbie.
Use quality supplies and gear for least frustration. Good tape, paper, gun, filter, suit, respirator, paint system, etc.
Oh, and start browsing car lots for colors now. Took me a year to decide. (hint, VW has some very nice colors)