Wiston Lodge is a really good campsite. Around a fiver a night. It's pretty much a 'dry' site though, and many of the folks who work there live on site, so for a quiet meet up, maybe with a specific focus, it's great.
For a huge get together where folks get very well oiled, it's the wrong place.
If there's a few would like the former, then I have a huge stash of fomes needing processed into amadou. It'd be an ideal activity for those who don't want to climb Tinto (not likely I'll do that again, not with this damned arthritis, though I must have been up it over twenty times) and to spend the evening working at. It needs the fire on for hours to simmer it properly. Any craft activity works for an overnighter like that really though.
It can be Baltic up there, and the weather closes in fast. It's also kind of short on daylight at this start of the year.
They do have cabins now though as well as the woodland areas.
Happy to contact Wiston and suss out what's available if folks want, but they're very approachable if you want to do it yourself.
M