I fabbed up the stock s12 from the GZE to the throttle bodies. The only bolt on part was the bottom supercharger mount with the tensioner pulley. Mine is in a lotus so i had to do alot of extras to get it to fit, reroute waterpump line, flip the altenater around and mount it facing the engine off the FWD mount, small space saving plenum for the 4 throttles, ect.. I will send you some pics when i get them up.
I am pretty sure the transmission will fit. I have this same topin under a different section right now. Somebody pointed out to me that the axle will not clear the block. But you might be able to rotate the engine around the tranny to get it to clear, but then you need a custom sump and so on.
scott