Can you tell us what size dog you have, is it socialized with other dogs, does it have any health issues, etc.? There are dog-sitting groups around that we have used when our friends weren't available. I'm not vetted, but I feel several people could give references for me. Depending on if your dog gets along with a big socialized old lumbering dog, I would be available in the winter months. We love dogs here in our CYV.
Oh woops, I think we are vetted, since we fostered for two rescue groups. But I don't have FBI clearance that I know of...