I spoke to one of the Hudson Admins & they were very accommodating & sympathetic towards the situation, but inevitably the system is more useful to them than to me. I have a safe haven in a nearby system that is uncontrolled (and of no interest to Hudson) so I've agreed to refocus my efforts there & let my old home base of the last 3.5 years be returned to Feudal control by them.
Thanks to the100thmonkey for a few suggestions that help me to make my decision. The Hudson Admin offered to put my preferred faction in charge in this second system but:
A) I don't want any of their team to feel I owe them a solid regardless of how those in charge feel, and
B) Where's the fun (or sense of achievement) in having it done for you?
I flipped my old system because I thought no one else had an interest, turns out someone did. I still think it's pretty stupid that Hudson wouldn't prefer a Fed aligned, high security Corporate state to a medium security independent Feudal faction, but this experience has helped me to at least see that there is more to Power Play than just something for PvPers to do, and that there are still activities that can be done in Solo or a group that would benefit (or harm) a power even if the actual fortification ends up being Open only.