The V8 Owners Forum -

This engine swap popped up on the nsra, someone chipped in with a different gearbox , here's the link
http://www.naxja.org/forum/showthread.php?t=1055170

cheers, I have been in touch with F1 Moto who do a conversion kit for £1k. That includes machined bell housing adapter and custom flywheel. After that, have to buy the BMW gearbox of choice and an M3 Evo clutch. So all in about £1,500.