Just as an idea for prices: there's a place in Birmingham that advertises in Retro Cars mag sometimes that will lighten/balance the flywheel, crank, con rods and some other stuff i can't remember for £85 inc vat. I remember they say they specialise in rally preparation. I can't find the issue that i have seen the ad in at the moment, but if you want me to get a number i'll have another look, although Birmingham might be a bit too far from you?