Hi all, I’m looking for a spare tire mount in the bed of my 2012 XP4 900. I’d appreciate if anyone can point me in the right direction.

I have a DG cage, and I believe the back seat bar is 1.5" and the side cage above bed sides is 1.5" too, but they’re radius. My spare is 28 x 10 x 12 w/ 5+" back spacing. I’m looking for something like this:
UTV INC POLARIS RZR BED SIDE SPARE TIRE MOUNT
Dragonfire Racing Spare Tire Carrier for the Polaris RZR S 900 & XC 900
The side spar mount would be nice, however with the radius bar, I’m not sure I can get it to mount.

It also seems that the ones I find won’t fit anything beyond 27" and some are made for 1.75".

Thanks for the help guys!