my name is Alberto, I'm from Italy and I've owned a Speedster 2.2 N/A for some years.
I did quite a lot of work on it...I started with the "classic" supercharger conversion with M62 supercharger and OBDTuner modded ecu (i did all the work myself), then I began a B207 engine swap, turbo conversion, etc. This forum has been a great source of information and ideas.
Unfortunately many things in my life have changed over the years...and finally I had to give up the conversion process, and sell the car
I have many spares lying around, both used/OEM and new (also a new B207 engine with aftermarket rods, pistons and some other nice things) that hopefully could be interesting for somebody...