Technically, Suzuki should be able to give you one, since they originally were designed for an external pump...
In the application I was going to apply this tank to I didnt need a factory sending unit and fuel cock, which is why I was looking for the plate in the first place. Turns out if anyone stocks these on the shelf they dont market it well, hell if I can find them!
Rick @rickscustomcycles did say he could make me the plates, of course I found this out only after I had already purchased a factory sending unit and fuel cock. Good to know if there is ever a need in the future.
My guess nobody bothered to make this plate because in the beginning couple years of the busa with this tank setup nobody had the need to go with an aftermarket plate with An fittings and all. The plates that are out there are all for the 5bolt newer 01+ tanks.