when you say conversion, what do you mean? are you looking for just forks and brakes so you can have correct offset triple trees custom made (or make them yourself)? or are you looking to get triple trees, forks, brakes, gsxr wheel, and then press in a cognito moto steering stem to run stock neck bearings?
I have 9 or 10 different sets of inverted front forks with calipers and rotors to match but rarely grab the triple trees for geometry purposes, and I don't take the wheel because I prefer having matched wheels front to rear.