I got mine done on a Hawkeye at an independent tire shop, came out fine. The software should have a procedure to load the car, or should be able to calibrate the alignment without the weights. I'd be wary of any shop which didn't sound confident enough to align an X5.

I would recommend you get all settings (toe, camber etc) within spec, camber I would get set to as little as possible, especially in the rear, I think low end of rear camber spec is -1.0. Camber adjustment is on the inner eccentric bolt of the lower swingarm, toe adjustment is at the inner eccentric bolt at the frame on the straight forward position upper control arm (the guide link)

On my X, they were able to get my rear camber set to -1.5 on the left rear and -2.8 on the right rear (obviously I have some pieces to replace back there), so I had them set rear toe to +.01 (closest to zero) to counteract the extra camber that couldn't be dialed out.

Your tires will wear fine with camber set within spec, just make sure the toe in the rear is set either at minimum spec or close to zero if you have extra camber. The toe will shred your tires in combination with the negative camber, the camber won't do it alone.

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2018 Ram 2500 6.7L Cummins 68RFE
19k miles -Bright White/Black - Big Horn Sport - Crew Cab Short Bed
2013 X5 35D (CEO's) - Born on 5/17/2013 -
82k miles - Alpine White/Cinnamon Brown/Premium Pkg, Sport Activity/Premium Pkg and Sound/20" Style 214/Running Boards