OK, after discussion with Alex, the Chairman, I rang Baines to explore the situation.
First off, the seal is indeed out of stock BUT the good news is that they have more on order, lead-time currently 12 weeks. Its a product they buy in rather than make in-house. I made a point about 2400 potential customers... So, no threat of discontinuation at the moment but a delay if you are mid-restoration and need it next week, you will have to be patient.
In the general run of things, the Club Policy is to support group purchases and not to try to compete with specialist suppliers to stock readily available products. As Tim rightly says we have no storage for quantities of bulky items anyway. OTOH we do stock things like "correct" bulkhead plates - small size, easily stored and not easy to come by "proper" ones. We have funds but they are limited, they would quickly be used up if we got into trying to manufacture and stock "unobtanium" parts - a key factor being that the vast majority of S2 parts are available from various sources (or, heresy, there is an S3 part that will do to keep the vehicle moving) so we would be investing in those few parts that are of particular interest to the small minority who happen to own that particular model.
My thinking in this case is that "door-seal that works" seems only to be available from Baines and would be of interest to all of us at some point ? That would have made a case for the Club getting involved in a production order perhaps - but it seems normal service will be resumed at some point this autumn, so for now there is no need to dig deeper.
Gene.