Water bad!! Snow is mostly water right??
We don't see much here.
you want to be very carful with this.. a little water on the radio gear and you'll be chasing the buggy into the trees. your reciever should be in a box, so thats good, make sure any wire conections are sealed up and make sure you have a rubber switch cover. that's about all you can do.

but I'd be more concerded with the rusting up after you use it in the snow,, maybe spray it down with some silicone spray lube before you take it out. that will help the water from sticking. and make sure you completely dry it off before you put it away, blow it completely dry with an air compressor.

my .02

Good luck