I bought a Marmot Halo 6 person tent for Montana this Fall. I think it will be fine. Take a look at that one. I also bought a Crua 3-person insulated insert to fit inside the Marmot if it gets really cold. Ya pump up the Crua with an air pump and it's insulated. It will still give us room (only me and a buddy) room to sleep in the Crua inside the Marmot and our gear just inside the Marmot. The Crua is smaller than the Marmot. Danny has one of those canvas wall tents, but God, those things weigh a ton. I also have an extra 12'x12' heavy duty plastic tarp.