I do have excess carpet from the move so that can go on the floor(also have padding) just dont know if it will mold or not. I do like the idea of the cardboard on the ceiling, that would be easy enough.
I did figure on buying a heater of some type, the oil filled radiator looking ones seem the safest.
I also have about 5 pieces of the insulation that come with the Rodent pro orders. LOL Im not a hoarder just kept those for some reason.