Yeah, I'm looking at custom exhaust (2x probably, turbo'ing it later), custom driveshaft at least once, fixing the trans. computer to accept a standard trans., bellhousing and other trans. costs. There is very little aftermarket for this motor, but that's what makes it unique.
The more I think about it, the more I know I should do it right the first time. My original plan was to get it on the road ASAP and do the mods I want as I go, but that doesn't look like the most money efficient way to do it.