I suspect gomog.com is about the nearest to, and better than, a workshop manual you can find, be that on line or anywhere else..? I think the MMC`s best attempt at providing information was with whatever handbook came with the car and which could be found not to apply to the Morgan, it was more a generic guide... I guess in the early days Morgans were simple enough machines and generally bought by those who couldcarry out repairs and modifications themselves..... Times change..!
Hope you find the info you need, but if not there is a considerable knowledgebase on here that is ever eager to help out.
Good luck in your search..
