Probably not what you want to hear but you no matter what you do to that MH you will end up freezing to death.
I am from Wisconsin and very familiar with the winters there. Staying in a MH is not doable.
I went to Florida for the winter in my MH. They had a cold snap of freezing temps for several days. It was NOT pleasant being in the MH period.
And in Florida freezing temp warnings means only 32 degrees AND at that temp for ONLY for a few hours right before dawn. Unlike up North that when the sun goes down the temps drop immediately to below freezing for ALL night long.
The windows in a MH are not thermopane. AND you have an expansive area of the windshield to consider also. ALL the windows is where all the cold will come in.
Sorry I wouldn't even suggest that my ex mother-in-law stay in a MH in Wisconsin during the winter. :B
