So Gollum remind me of this thread and that i never posted the info on the RWD Transmission adapter for V A G(Audi/VW) excluding the VR6's. I found this on another forum for hybrid guys like us but focusing more on Audi/VW cars, what i gather from a quick glance over the thread again this is a bellhousing that bolts a T5(ford) to a *** motor, is SFI rated for around $600 but you would have to "custom order" clutch with the ford spline and Audi Hub. They say that miata guys do this all the time but i don't know for sure about that, anyway heres the link to the thread on the other forum:
http://www.motorgeek.com/viewtopic.php?f=15&t=38205&hilit=rwd+abz
And heres the link to the company who makes it, and the listing for adapter that i believe they are talking about:
http://prestoliteperformance.com/drivetrain/bellhousings/bellhousing-volkswagon-audi-muncie-jerico.html
One last note, looking at the description of the the bellhousing, it says it does fit the VR6's so maybe they have added that since the thread was last touched on.