I use the SSBC front disc conversion on my 68 Satellite . originally a power brake car , due to low vacuum I removed the booster and went manual brakes . I did copy and fab up a manual firewall plate . I do have the master cylinder ,disc/drum , ssbc provided when I bought the kit . I think it may be 15/16" bore , has a good pedal height and feel .
the kit is 4 piston aluminium calipers which appear to have been discontinued . it is a copy of the 66/67 ford caliper I believe , takes that pad
due to drag racing I will likely go to a wilwood caliper/kit in the future

Tex