the only difference between an expensive spray gun and a cheap one is that you can get parts to rebuild an expensive gun when they wear out.... but used as a hobby gun, just go to harbor freight and buy the HVLP gun with the two tip sizes. 1.4 and 1.8 . do not buy the detail gun with the .1.0 tip. its too small to shoot most of the products we use for clear coating bows. The 1.0 tip requires a reducer for your materials most of the time, and isn't what you want. Trust me on that one. i have several setting on a shelf.....The 1.8 tip is too big for spraying bows and lays too much material down. You could use that tip on house paint i'll bet.
Food for thought...
I use my gun a lot, and keep the gun wet all the time. Learned that trick from a professional auto painter years ago. I've had the last gun i bought in lacquer thinner in a coffee can when not in use for 3 years without it drying out. letting them dry out between uses causes more problems than keeping them wet. The key is cleaning them out properly EVERY time you use them. Even then you need to tear the gun down completely and clean it good once a month when used regularly. Takes about 10 minutes to do. kirk