Prepping an "early" (~1966) 727 for truck use

Dang, if that's the case I might just get another later 727 to use the internals from. SB ones are a dime a dozen around here. My current living/storage space situation would make it a pain in the @$$ to have my truck down for an extended period of time.

I think before I take any further steps I'll partially tear down the BB unit I have and see what I'm starting with, who knows might have already had someone in there who updated some things...
As soon as I started reading this thread this is exactly where I was going in my mind.. just getting a core big block mid 70s transmission.. it would probably cost you one or $200 on Craigslist for spacebook... Then you can keep it simple and just do a straight rebuild... And I always recommend a transgo two shift kit..