I have been thinking (and it hurt) with these Honda big singles, XL600's XR600's and 650's etc, does anyone have anyidea about what fits what? I mean, I have a XL600LMF, if my head cracks can I fit a XL600R head? Wheels? My gold coloured wheels are delaminating on the inside, can I fit the silver wheels fitted to the others?. Any other bits you may know of?