A couple questions about a 993 Brake conversion

[SoCalGL]

I need some info on how to mount 993 calipers and rotors on the rear of a 1969 standard bettle irs set up. What machining is required, can vdubengineering do it, how much does it cost, what parts do i need to buy,

already have the front mounts figured out ( i'm going to go through vdubengineering for that onces all the parts arrive)
also what should I do for a master cylinder setup?

Thanks guys