Im assuming your looking at the 7k capacity one? The 5k is pushing it IMO, weighed my X no extra junk inside, quarter tank gas and me standing out of it- 4960lbs. I probably have a few pounds shaved off because of my muffler and res delete, they weigh a decent amount for what they are.

So for $1500 or so, not sure on your space and roof height if you have a garage or detached shop/space, i would go and get a normal shop lift, one can be had last time i checked for 2k or less.

Quick search -http://www.gregsmithequipment.com/Atlas-BP8000?gclid=Cj0KEQiA6vS2BRDH8dq06YDHz_IBEiQAzNdBm fMngNbG9XtA897Kfi7D5WkHQkX4dJxw1DoQGOX-FXIaAkll8P8HAQ

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2006 X5 4.8is Fully Loaded