At moving time you could just move her whole nest over
Inside the Barney house - she may rebuild it there or she may abandon it and build a new one somewhere else!
Plastikote is pet-safe, waterbased paint for waterproofing wood. A lot of people paint the wood houses and shelves with it - it means it's wipe clean. It's a little pot and you just paint it on with a small housepainting brush - I use a half inch one. Very thin and easy to paint on and it dries quickly. Two coats works best. I do the second coat the next day. Only takes about 10 minutes so not as bad is it sounds.
It means they're wipe clean and you can paint it a variety of colours! Or clear to keep the natural wood colour. It's not essential - our hamster has never pee'd on his shelf. But houses can get stained inside if they have a pee accident in the house - although wood houses can be scrubbed - they can end up getting spoiled.
https://www.amazon.co.uk/gp/product/...?ie=UTF8&psc=1
I think most hardware shops sell it - our local one does. Or you can buy it online.