Hi blokes
thanks for your help, yeah I agree...after further investigations I can confirm that the motor transplant would probably end up being very complicated and costly. I'll probably end up stripping it and assessing the damage

. The knocking is too bad for the bike to be reliable transport

but the crank may have survived and may just need a set of shells. I'll post results as and when, although a low mileage replacement 2004 - 2011 motor does seem preferable if I could find one. Or even a decent crank providing there's no other damage.
Thanks again for your help
