Sorry about the mice . You need to find where they come in .I have had 3 MH . The last was a Dolphin . On All 3 the mice were entering where the sewer came through the floor .This would be a place to start. Good Luck.
If you can get it down to a UPS shiping point . they can rap it in heavy cardboard and freight it away . My wife ships very expenceive large paintings with them & no damage. It will also have insurance .