The offset dowle pins arrived from RobbMc on Wednsday, so that evening I tacked the job of getting the old ones out. After attempting to twist them out using a pair of Vice Grips, I got serious: I welded a piece of metal to each one, and jacked them loose with a 3/8 bolt via a tapped hole in the metal tabs.
The following night, I indexed the bellhousing and managed to bring the total run-out to .003. Then the clutch was installed. Today I installed the bellhousing and transmission as well as welding in the new trans hump.
Tomorrow I'll install the shifter and driveshaft, as well as put the carpet back down over the new trans hump.