Tried Big Dog, quick response, but no luck: "S&S Discontinued all of the X-Wedge motor parts and sold off their inventory. I cannot get them anymore."

Matt Neal also responded quickly with "Unfortunately as S&S have ceased supply of X-wedge engines and spares and our stocks are now exhausted I cannot help." He suggested I try https://www.berrybrookmorgan.co.uk/

Waiting on a response from the local dealer and have sent off a note to Berry Brook Morgan also.

This is VERY worrisome - if S&S will not even supply normal maintenance spares for a recently produced engine, how will we keep these things on the road? I would have thought Morgan would have required S&S to continue to stock spares for some years after production ended, but I guess that's too much to ask.