Spare tire for Isata

I don't have Isata, but have issues with storing the spare as well. Currently it's in the lower storage compartment, which isn't ideal since I'd like to use it for storage. Looking underneath the coach, it looks like there's some room to mount it behind the waste tanks using a tire lift like is on my van. It will take welding some support bars to the frame, and finding a way to turn the winch, but it should work. I've seen this done on several vehicles, including stock ford van and my old travel trailer. Otherwise, they make bumper and trailer hitch tire mounts if you're not using that space. I'm told it's pretty common for rv's not to have a spare.