Mission runs fortnightly at the mo, so the remaining dates this term are:
Nov 22nd, Dec 6th and Dec 20th.
I guess Dec 20th is probably past end of term, so you have a choice of two. Dec 6th seem plausible? Maybe have a sign-up list at the next Rocksoc and see if it's worth a minibus? I'll leave you lot to organise the details. If it's more than a busload - as I said above - I'll put a few up overnight if required.
Not trying to be presumptious, but is it worth mailing the Rocksoc membership and seeing if anyone's interested as only a small proportion of the membership read this board. Dec 6th's only three weeks away and we all know how long it takes to organise anything in St A
Where you find a driver willing to stay out until 4am and not drink is another matter though... :-O