Oddball car - swap to disc - ideas?

....The only exception to this rule was the factory Super Stock Barracudas and Darts for 1968, which were all big bolt pattern with retrofitted b-body parts on them.

Just to clarify a common misnomer/wives tale.

The disks on 68 Hemi S/S cars were NOT retrofitted Bendix B body parts. The Hemi A-bodies had special Kelsey Hays hubs and rotors machined with large bolt pattern and large hub center register. And they used the same calipers, LCA's, and UCA's as regular '68 disk brake A-bodies.