Tvov it is not full hook up. Electric only but I have plenty of water onboard and the lodge has plenty of bathrooms and showers to use. Makes it pretty nice. We have enough propane to go about 8 days and if we use a little electric heater another day is possible but I can't ski that many days in a row 12 hours a day anyway!
On the towing up the mountain with all the tongue weight, ~1,900 lbs, we usually make it all the way in 2WD. We have had to chain up because of pulling a trailer up the mountain but that is not a problem and just takes time.