Honestly, with any properly set up gun you should be able to play for months on end without broken paint. Assuming you use half decent paint. It's all in the settings and the setup.
Etek 3LT grey/black f/s
Valken Proton greyish/black f/s
68 4500 PE stubby, LP output f/s
68 4500 AIR tank(no reg) f/s
Creed Battery, eyes and noid f/s