I have a damage 750 paso head piston and sleeve which may be recoverable. Had a machinist look at it and debur the sleeve. the rocker gear still good but just looking to part with it to someone handy for Postage plus a few dollars from Australia.
It's a shame you weren't in the US. I've been wanting a 2V head to use as a training aid for showing people how to do a valve adjustment. A clean and a repaint and the head would make a neat desktop paperweight, too.