I have a six-plot bog house that I would like to offer a key for so that someone can complete some quests. You would have the only key and I would not be using the herb garden.
I would be willing to let you use the garden for free (asking that if you can, please keep some grain on the ground for my piggies) but if multiple people are interested I'm not necessarily going to go with first-come first-serve as it would be nice to have a little bit of income.