Welcome to the world of airbrushing! Looks like you've got a good handle on it.
I've got an old Paasche VL, it's a workhorse. Rugged, too. My only complaint with it is that as a siphon-fed brush, the cup dresses to the left or the right, and I can't grip it the way I want. So I've got an Iwata Neo, gravity-fed, the cup is on top, in line with the brush's center line.
Where did you get your clamps? I made a bunch with a bag of skewers and a bag of alligator clamps. I saw the cat-scratching box some people use to hold the clamps, so I made my own, out of a candy box bottom and strips of corrugated cardboard stock.