Count me in as a probable, FM!
Sounds like there should be some interest. Have you got a specific date in mind yet? Personally, I couldn't make 21 to 23 Feb (or 21 to 23 March for that matter) but obviously everyone will have some other commitments which would take precidence.
Its usually possible to hire a whole youth hostel cheaply if there are enough takers. But I guess that that would be quite a financial risk and anyway maybe it would be too late to do it for this winter season.
The key thing is getting a good base, as there were for Llanfair and Stony Stratford. Good luck with your "preliminary investigation prior to potential planning". Let us know if we can help in any way.

"She'll be wearing pink pygamas ...!"
Alan