While I have no intention of bring my sound van to the Getaway, if you are having someone do sound, perhaps for the evening program, might I suggest a program on using or getting used to mikes and pick-ups etc. in folk music.
I've done them before, and include tips on doing sound checks, the differences between festival and concert sound, stage prep, preparing sound plots or riders, as well as correctly using monitors, reverb, preventing feedback etc. I dont mind bringing a small amount of specialized gear, mikes, pick-ups, DI's etc, but I would want the amp/mixer and speakers there. I'm coming to relax and not hump speakers around. But if you've already got the basic gear, I can do the class.