In principle, a pre-Christmas gathering could be OK. However:-
who would camp?
I doubt if there's a lot of insulation in those 'Uts.
We know that Victoria has 2 ladies' beds and 7 gents'. Shaftesbury has (I think) 6 ladies' and 16 gents? There is also plenty of sleeping room in the lounge of each. Having never participated in audaxes from any other 'Ut, it didn't occur to me to contact anyone else. How do the other 'Uts measure up?
Unless we wanted night riding, we would also have very long evenings to deal with, although I suppose that as long as it was before the end of October we would still have daylight saving. We would definitely need properly organised silly games to while away the hours.