Adamvr6?

Hello all! Im wondering if i can get some answers regarding a conversion i wish to undertake. I have a 1997 Yellow Mk3 Gti, its an 8v colour concept and is mint. I would like to fit a complete vr6 engine and box to my car. Ive had a corrado vr6 and ideally want that engine as i believe it is running 190bhp over the golfs 170bhp am i right? Im guessing the best bet is to buy a rear ended car so i can swap all relavent parts over? Does the corrado lump and parts fit straight into my golf, or is it easier just to buy a vr6 golf as a donar? The engine can be stripped and inspected as ive been told