Front airbox plate and bellows for 34mm Mikuni for 1971 Commando

anyone know where to purchase a front airbox plate and bellows for a single 34mm Mikuni? I see RGM offers a plate with one hole, but no fitment

I run the standard bellows on 33mm Keihins which are a bit larger in O.D than the amals, so I don't think you would have any trouble fitting the bellow to your Mikuni.
As for the front airbox plate email junior at RGM.