I think some will open up and some will blow in. I think it really depends when they get by to plow the country roads and if the access points get opened at all. Big Lake should be ok as I would think a lot of snow would have been blown off.
My only advise with t he lock and ride is to make your ownand make a semi permanent mount as I've heard of the lock and ride popping out while traveling. Not sure what other people's experiences are. These are not my own only what I've heard I made my own lock and ride holders for my ATV...
I have a tandem 7x14 and make it down that way pretty often if you want to take a look at mine for measurement purposes. Mine is insulated with a vented heater.
Any interest in going fish house / hunting unit like an ice castle. Going to be a little more cash but might be set up for various applications. We love ours for pheasant hunting and deer hunting with the occasional fishing trip.
I could see if you want to haul 2 wheelers and gear this...