Ooh, thank you for the offer. Between us we have a decent collection of inflatable beds, so the beds might not be to much of an obstacle. We'll definitely bear it in mind if it happens to be empty, although it could be an issue if we arranged to use it and then someone wanted to rent it -- we need to book places a few months ahead, because there are so few places big enough available.

sans maybe the cost of a cleaning company coming in after?

Judging by the last three Camp Sparkles, you might actually end up with a cleaner house than you started with, anyway :-)