Hey Kevin,
While I don't own a Rhino, I do have a 3210. The Yamaha Rhino Spec sheet says the length (of a 2008 or 2009 model) is 113.6 inches long (9.46 feet), 73 inches tall.
I just measured my 3210's garage...it's exactly 10 feet from front wall to ramp door; that leaves only 6 inches free space. You could tie down if you crossed straps from the front of the Rhino and tied to rear anchor & rear of Rhino to front anchors. (X of straps would end up in the middle of the Rhino).
The height from floor to the bottom of the loft is 75 inches (73 inches where the two light fixtures hang down.
Hope this helps.