I tried one of those cheap paint guns

it worked i guess, wdidnt feel quite right but paint came out of it and layed down flat enough. I mainly have it for stuff that might abuse my better guns

i was using an iwata, but am now using a devilbiss GTI, and i quite like it.
Painting isnt really hard, you just think about what you are doing, if the paint doing on is doing something you dont want it too, stop and think about why that is, and adjust what you are doing
solid colours are really forgiving tho, plus you can do single stage and not worry about clear (i normally do clear over here because of the amount of UV light we get which eats paint pretty quick)