Drive as if you have a cup of coffee on the dash.
Buy winter tires, they are made of softer rubber and have technology that resists the snow from packing the tires grooves, resulting in snow to snow traction (non-traction).
Its like rolling a snowball, the further it travels the more snow it gathers. The same thing occurs on all-season tires , they have the tendency to pack snow and NOT release ice/snow from their grooves , causing the vehicle to slip before it should. This is augmented by the extra weight of the camper.
Winter tires create better rubber contact with snow/ice, they bite better and offer a quiet ride over snow tires as well as longer wear.
We use them on all our fleet vehicles, with very good results. I could feel the difference when running the course in the snow, I was able to push the speed and stay within the cones, something I could not do running all seasons.
this explains things better than I can.
http://www.wheels.ca/how-do-winter-tires-differ-from-snow-tires/Bill, do your best (wax/sprays) to protect your tie-downs , rear skirts and jacks from New England road salt. That's what did me in and is probably why I had so many jack binding issues, cracked fastguns and rotted tie-down brackets that I had to replace.
We now have the cabin and use the lease SUV to head north to snowmobile. It took its toll on the camper that we now use in warmer weather.
Good luck with your new camper, regards to the family , stay safe.
Bob