I was after how to find out about the crank because I guess thats how I would be able to spec a new flywheel. Currently I dont know what to buy. But before that the pesky stuck middle bit...
Ive got a puller coming from a mate tomorrow...so will try that first. The circlip doesnt look like it made its way over to the UK

If not its good to know there may be a way to hold it from behind too with the con rod. Cheers