Is there any chance you can ask a local rescue? I have someone I met through a rescue who is happy to help look after my pets in an emergency, and they have small animal experience.
It's a long shot, but it's worth an ask as a lot of people involved in rescues are surely happy to help and they will be an animal lover to put your mind at ease
Even if you said you'd give a little donation of items to the rescue for the holidays?
Depending where you are, you never know if you may even have another HC member near you. There is a pet sitters list around here somewhere with the members that are willing to take others hammies.