I have a 2005 GSXR 600 that needs a new engine. I'm looking to buy a used engine and need to know what will convert. Will an engine from a 2004 600-750 bolt on without any mods? If not what years will convert without having to build engine mounts etc.. I'm willing to use any 750-1000 engine even if I have to change wiring and things like that, I'm just trying to avoid any mounting modifications.