I was considering doing something similar but it worked out to be too costly with swapping game boards. I instead put in a modded PS2 and run the gun games from hard drive and use GUNCONS. Of course I purchased all of the games (Time Crisis II & III, Dino Stalkers, Vampire Night, Resident Evil Zero Aim, End Game, and a few others). I pop in PS1 Gun Games like Revolution X, Point Blank3, etc.... and change guns.