I have a NOS Sanger intake sitting in my garrage that is cast/machined from Sanger to accapt their rideplate. I want to have it machined for a shoe/rp and was wondering since it is already machined for the rp do I only need the shoe machined? Also what is involved in machinig for a shoe? I have a mill at my shop and am no stranger to it( just a bit rusty). And if one were to have it done what would it run to have it all done up?