Bunchrew is a nice place for sure, but my wife works at the Kingsmills hotel, and if you came up on a certain day, she could probably sort you out with a good deal.
We live in a small flat so no room at the inn I'm afraid, however, I do have a lovely (old) caravan. She's a Swift Corniche 15/4 of 1991 vintage, but dry as a bone and all the usual comforts, so I could put it on a site of your choice and you just pay the fee for a couple of days. I'd make sure the fridge was stocked and tune in the Freeview tv for you
I can't say anything about the other places mentioned on here, it is entirely up to you. But try calling & asking for Hamish. Tell him a friend of Kenny Aird told you about him