With regard to the GroupsIO site. I created it when the Yahoo Group was about to expire. I've copied all the old files and photos to it so at least they're still available. There hasn't been much traffic as there are only 5 members. I'm obviously happy to accept new members or to migrate the data to a more appropriate website. Alternatively, it could be expanded to accommodate all S&B owners, but in order to host all the photos that would come at a cost – which is why I just limited it to Model M. That said I suspect many of the old photos don't need to be migrated. One option is to simply allow it to grow as users find useful.
Happy to consider suggestions?