The CB250RSA restoration costs are up past the £2.5k mark so far and it's still in bits! I spent over £80 last week on tiny O rings, 10 external circlip and 10 thrust washers for the gearbox shafts! I could have bought cheaper from the Web but I only trust OEM parts in a gearbox, I don't fancy the thought of a circlip letting go at 70mph in a gearbox!