I have one of those small HVLP detail guns, but the top leaks like a sieve and I wind up wearing more paint than I sprayed. I have a full blown Automotive HVLP gun, by Deviblis, but its way too big for this. I may look into one of the smaller ones since the one I got is too messy. I primed my Corsair with it and had more on me than the plane, even with screwing the top on really tight.
BTW, the Duplicolor Primer, hardens if you try to clean the container with Naptha or enamel reducer. I was like, you have got to be kidding me! Thankfully I had some lacquer thinner to clean up with.
I did paint my Chipmunk with Rustoleum using the detail gun, and most of everything else within 10 feet of me. It did a somewhat nice job, but my tape failed in a few places so now I have to sand and touchup a few spots. It looks nice, but I think its on too thick, which is why I want to try dope this time around.