Everything from the spindles out will work just fine as crackedback already mentioned. He just needs bbj uca's or the adaptor sleeves from dr. Diff.
Any fmj car can be a donor for a BBP disk swap, includes cars all the way up to '89. Spindles, caliper brackets, rotors and calipers will all swap. Some of them might be pin style calipers, but if you take it all it doesn't matter. You just need '73-76 lower ball joints and BBJ UCA's or sleeves for the small ball joint arms.
