Thanks, I wont be giving up.. Too much invested already!

I haven`t got any pics of the finished chain drive on the computer but here is one with the plates bolted to the front of the block and a separate bit on the head. It uses one Morse silent chain and standard bike tensioners that bolt to the plate you can see in the pic. The swinging guide is controlled by a standard CBR tensioner (which is a non oil, spring loaded ratchet type).


EDIT: You`re a bit lucky with the the GA head with nearly all the holes lining up! Will there be plenty of thread boss for the other two?
When using the CBR head, all the head studs have to be moved out 3mm. I had threaded cast iron inserts made to fill the original holes the had new holes drilled and taped in the deck to suit 1/2" ARP studs. I can use the standard MLS bike head gasket.

Ive made some vernier cam sprockets for the cams that look a bit cool. but i still need to make the timing case cover.
The pistons and rods are made and the crank has been lightend, offset ground and balanced.
Its nearly ready for assembly, but have too many other things on to finish it at the mo.