Cheers for that info, I thought as much with the power loss, just shows the only options is either a standard 4wd or a full rwd transformation, would be good to do, even rouse thought it was a good idea I'm just suprised that no one has done this yet.
Well let's hope I don't just leave it a dream and actually put it into practice, would be a real good project and I'd do all the work myself so wont become a massive costly build.