Sorry for the delay, but my daughter was born on the 28th... :-)
You might give
http://164.forum.bilia.se/ a try. I don't think that this is a common swap even in Sweden (I only know of this car). I had some thoughts in this direction (but to use a S80 T6 engine with a M90H manual gearbox), but never got around to it. Now I aim to convert to a M410 (4+1 manual).
Best of luck!