I do house sitting, cat sitting, smallholding sitting, farm sitting for all my friends... And I'm so busy with it at the moment (holiday time!) that I rarely find a minute for myself! The problem is, I can only do it quite locally, because I have a garden and cat that I need to look after at the same time, as well as a part time job that is my main income, so I have to be able to do that as well!
I think your best bet would be to find friends locally who could look after your livestock/pets etc while you are away. They would have the advantage of knowing the locality, too.