At the high end would be 14 people crowded into a three bedroom, two bath house, with MREs. At the mid end would be 14 people crowded into a 40 foot trailer but with hot meals served in a chow hall. At the low end would be GP medium tents with MREs. BTW they would travel via military air (training for the aircrews) and be paid government meals and quarters furnished rates.
If it is good enough for the military why isn't good enough for everyone else?
I am being generous - my initial thought included an enviromental loop - all summer conferences held at an abandoned Utah military air base (Wendover) and all winter conferences held at an abandoned Montana military air base (Harve)
Good enough for me, good enough for my 'betters'.