SOSL, I think that was suggested in a very similar thread which seems to come around once a year.
It isn't that we don't want/need the Reds, BBMF and other similar things, but funding shouldn't come from the Defence budget. While it does most will still think the UK Defense pot is fat enough (Looking at the 'PAS offer and FRI's' thread would probably reinforce that!)
By all means use the appropriate service establishments, infrastructure and personnel but create a budget for it (UK Heritage?).