The dimensions of the 27 hsf garage are:
9' 1/2" long
94 1/2" wide but only 69 1/4" wide at front of garage(wheel wells).
86" height to ceiling, 74 1/2" height to bottom of top bed if installed.
You can probably squeeze it in there but you may not like how cramped it will be. Better measure the rzr to be sure. If there is a winch added to the front, that may not be included in the spec'd length. My winch hook protrudes 2 inches in front of the standard machine. It might hit the bathroom door unless you tie it open while the rzr is loaded.
Something I just did was lower the fuel tank by installing some 1 1/4 square tubing above the tank hanger to lower it a bit. The fill hose was so level, I had trouble filling the tank without gas running back out the filler. Adding additives resulted in much of it on the ground. And you do need additives if you can't buy non-ethanol gas. I tried using a long piece of vinyl tubing on a funnel to get it further into the fill hose but that was inconvenient and not very satisfactory. I haven't used it yet but there is some definite slope to the hose now.