Halfcut is quite cost effective these days for $1800 - $2200 and then selling the 4WD Gearbox.
I Bought just an engine $1100 with all the hang-ons, Changed the Turbo, Clutch and added big intercooler. I ran it off my b6t computer and now have a Microtech. If you got enough dosh to do it in one hit I'd go like mentioned above.
BPT Engine with Hang-one
Microtech Computer
Daikin Clutch
Hybrid Intercooler and piping
Especially in Astinas where its not all bolt in