Also, when I lived down there (dark days...), I always had no problems getting parts from Nightingales in Rugby. Their number is 01788 573257.
They had all the parts info for the MC11 on microfiche and always managed to get bits (albeit genuine Honda - kerching!), although I never had cause to get pistons and rings....
When you get it running, don't rely on the low oil light - the sensor is bust (I tested it after the seizure) - that's how I managed to sieze the motor.
Hope this info helps
philandhisjag
_________________
No bikes at the moment, looking again
Dreaming of another NSR!!!!!
1989 Ford Thunderbird