Getting into Hyalite Canyon

I will be out in Hyalite Canyon climbing for 4 days in March. I rented the Window Rock Cabin while I was there and was wondering if renting a snowmobile would be worth it or if we should attempt to drive our Subaru up the road. I am willing to rent a snowmobile if I can end up getting a whole bunch more climbing in, since I would rather not waste half of my trip skiing around in circles. If you do recommend renting a snowmobile, who would you reccomend renting it from? Any route recomendations from the 3-5+ categories that are close to the cabin would be greatly appreciated. Thanks. Dave