Just wondering, while I was searching for some parts for my 2003 yz450f I came across an 06 yz450f frame. It is a bare frame with nothing on it. The rest of the pieces are there tank sub frame ect. Would putting the 03 engine in the 06 frame be as simple as bolting it in or would it be a frankinstien operation with bunch of fab work. I'm not scared to do a few mods but dont want to get into changing every mount ect. I also asume it would need the 06 exhaust and plastic as well. I can get the frame fairly cheap is it worth the trouble?