There are a few how to's on the net that I was reading. I think in addition to a different bellhousing, you also need a custom driveshaft. It has been done, a lot, just a matter of how much green you have lol.
D&D sells a whole kit...Its not that bad we just did one in my friends 90 gt TT. Not very hard to install either. Just cost a bit more money thats all.