1972Chevy,
If you're serious about a T56 or another model you need to call a Tremec dealer and walk through your application with him. Mike Forte (username mike forte on CHR) is one of their premier dealers, and has been involved in several modifications to the Tremec offerings over the years, as well as developing some accessories for them on his own. Mike put together a TKO600 package for me a couple of years back, and it inclulded the tranny, bellhousing, clutch/throwout bearing/pilot bearing/clutch fork, block plate, starter and a hydraulic slave clutch cylinder that's his design. The tranny was $2195 and the total cost for the package, delivered to my door was $3143. He's across the country from you, but you won't find a better guy to deal with if you can accept a few days on the shipping. Tell him Roger in Kansas City sent you if you call him!

FORTE'S PARTS CONNECTION INC.
40 PEARL STREET
FRAMINGHAM, MASS. 01702
(508) 875-0016