Thanks for the extra info Max that helps clarify the parts I need. I pick up a repo model 1 badge which will do the job. It market is pretty tough for decent priced parts but will see what I can dig up. I've always found with parts like this if your prepared to wait a little while they usually can be found at a decent price.
I've made some progress on the engine, new rings, bearings, seals and gaskets fitted. Just need to tidy up the head and put in on.

Attachments
IMG_6555.JPG (198.39 KB, 58 downloads)
IMG_6556.JPG (261.01 KB, 60 downloads)
IMG_6566.JPG (274.92 KB, 59 downloads)