Routine servicing parts should be left to "normal" routes. MMC covering the special Morgan only parts that could be outsourced to suitable suppliers. How would this be done? If drawings are available then pretty straight forward under a lucensing agreement. Hopefully not incurring big mark-ups other than sensible re-tooling, profit margins. Letting suppliers sell direct with commision to MMC added on is one option. Getting dealers/servicing garages involved too so keeping the knowledge of past car workings going, basically collaboration that benefits all parties.
We did this in the cigar factory where independant engineers made parts for us at significantly lower costs than OE machine suppliers. We also upgraded some components for better than OE.