We have a caravan located in front of our guesthouse. Its not for taking away, but it's quite comfy to stay in.
If you rent our caravan, you are free to use the kitchen inside the guesthouse, the bathroom and the shower. You can't use the toilet in the caravan, but the Guesthouse is located on the side of it.
We don't have the gas connected in the caravan, so you can't use the kitchen in there, but that is nothing you have to worry about, because the kitchen inside is much better anyway! ;)