My wife and I were looking at the MO and are pretty set on it since the tetonX has a 2 year wait. We got 2 little ones and camp in the Colorado mountains most of the time. Wondering what options are a must when ordering. I was thinking of adding: Rack on the front box, 2 bunks, extra power tank and propane, spare tire carrier, roof rack. I already have three matching 4runner wheels so was going to use those. Planning on using my own ovs awning as well. Any other suggestions? Any idea on why the spare carrier is $845?