Nice progress!
Which transmission are you going to use? Are you going the 4wd route or rwd?
My eye is fallen on the dodge viper bw t56 unit; only problem is finding a proper bellhousing.
Maybe you're also interested in this type of gearbox?
Opel Manta A series
Was first trying to install this engine, but it's just too tall. Sold the engine and kept the borg warner t56, and bougth me a m70 engine. Engine is on his way home. I hope this one will fit.