Congrats on the motorhome purchase?
You say a 1994 unit so I have to assume you did not buy that 98 Cutter? What size have you got?
Because of the freeze thaw cycle it is a must to have some type of protection from water damage that can happen overnight and do big $$$$ damage. If you cannot find covered storage, the fitted covers from CW/or other will work, or another option is the tarp from the local building supply store. If a tarp, buy a good quality and tie it down well if it is exposed to the wind.
Look into whether your local fairgrounds has a building that might house your motorhome. Many community fairgrounds have shelters that are unused in the off season.
Another thing to consider is some type of heat. It does not have to be warm, but should be constant to prevent moisture from condensation with the change of temp. throughout the winter.
You have a big investment there with the purchase, but it is going to require still more $ to maintain the value over your years of ownership.
It should not be parked on earth base if possible. If nothing else, purchase some of the stall mats used for the horse stables and lay them down for some type of protection from the ground moisture.
How about some pictures of you new toy?
"LOVE and LOSS, are two of the greatest emotions one can experience. -- I went to school to learn about "WHAT GOES UP MUST COME DOWN" but I had to live my life to learn the lesson of: 'WITH LOVE THERE WILL BE SORROW'."
David Stewart. (after loosing my NAVIGATOR)