Nice build Mark
! You are correct, the spirit of the build should decide it. Both you and Jeff, and Hyde as well as others, have set the bar high.
Mark, don't you have a 6-bolt Ansen bell for sale, or did you decide to keep it?
Mag bell housing on eBay:
63 64 65 260 289 HP Mustang Shelby AC Cobra Era 4 Speed Bellhousing | eBay