I have a brand new block for one of these - or something very similar as it has the early 'narrow' transfer port covers. I will never use it as we didn't see these engines here in England. Anyone over here visiting the old country wanting to take it back as hand luggage is welcome to it for a small consideration.
I just picked up a NOS block, pistons, rings and rods. Heck all I need is a NOS crank now. I have extra sets of rods and bearings.
The motor I am working on I just put in all new gaskets and seals I replaced a piston and just gave it a good overall inspection and cleaning. I checked my compression after re assembly and had 125 on all six. So close yet so far!!