about a quart and a bit of sprayable clear (ie: complete mixture,hardener,reducer etc.) ,you can get near 4-5 heavy coats ,RR's and bikes with a thousand pieces will take more .The more you put on the better chance your gonna get runs.Make sure to let the coats flash long enough .If you want it to be really nice ,throw on 4 coats ,then wetsand with 600 again and throw on 2-4 more ,it will look deeper and come out smoother especially if you have multiple lines and if you want to bury them .If you plan to wetsand after ,try and get on at LEAST 4 so you have clear to sand off .
if you do the sand between sessions you wil have a lot less wetsanding to do to get out any texture ,as far as little dust and stuff .kinda hard to avoid but sometimes the more clear you have the more they get buried
2 quarts of PPG clear is not cheap so make sure you have the laying of it down pretty good or your gonna get runs and have to start again .
make sure when you wetsand to stay away from edges and lips ,there is waaaay less paint there and you may burn through .use lots of water and a blow gun is helpfull to blow thw areas dry to check where youve been and where you havent