There is nothing wrong with a FLlll gun. My biggest complaint was the overspray which wont get with the Iwata. Yes, there is some, but the gun pressure of 14-16psig at the inlet, lessens it by a lot - which is a savings in materials.
This is with the IWATA LPH400 w/1.4 tip and representative of the rest of the car, My avatar above.
Cheap at approx $500+/-