Should be fine. I"m interested in Bernard's solution. I'm wondering about the "stick style" PA's made by Fishman and Bose nowadays--vertical arrays of many small speakers instead of large ones on stands, supposed to give a more consistent sound anywhere in the room, do you have those in the UK? Some of the technically cleverer touring performers I've seen recently get great results out of these easy-set-up wonders.

Re: care and feeding of sound techs--if you've got a good one, take his/her advice over anyone on the internet's--even if they sound smart like Bernard! That's what they're paid for--to do what's possible with what's available.

Hope you don't actually have a crowd of 200--that room will be much more comfortable if you have room to set up the chairs in a fan formation, with a generous aisle in the middle and leave both sides clear--the less seat-jumping the better!

W-O