Hi TT John,
I have a cylinder head that you may be interested in, it's for the early A10's cast iron with rounded shape cooling fins part number 67-251.
it is in a reasonably good condition, but has one fin broken, - I have the broken bit, so it could be easily repaired by a competent welder and returned to service.
I have some pictures which I could not download onto this forum, but if you are interested let me know your e-mail address and I will send them to you.
Regards,
Richard