I think some ppl are getting a little ahead of themselves, on confusing what expensive really is to some ppl. To me, fair enough, sounds great, but then again you don't know what kind of budget this lad has.

I think you'll need to source a bit of info on what kind of options you have mate. At the end of the day, you'll probably be better off getting the ST170 conversion and going on from there. At least its a stock power output that actually reliable. No force whatsoever on the engine.