See Post #6... Sboxin has done it.
Something else I have thought about is just to use the QuickJack to easily get the car up on jack stands. I’m guessing right now but it seems like there is room to get stands in place under the rear torsion tubes. Front should be no problem to put stands under the front A-arm points.
Another idea I think someone else mentioned is to build 2x12 ramps to put the QJ on to gain a little more height.
The QJ comes with 2 sets of rubber blocks. The short ones are 2-1/8” tall and the taller ones are 3” tall. They say you can stack them to get extra height — I need to convince myself that’s a good idea. They also make a set of SUV adapters that are taller. I have not looked at them closely to see if they would work with the 911’s lift points.
I lifted my wife’s SUV the other day with no problem. There wasn’t a huge amount of ground clearance at the wheels but it was enough to get the tires off and work on the brakes comfortably. Plenty of room to wrench underneath. Point is I’m not sure I need the SUV adapters for the SUV — wouldn’t it be ironic to need the SUV adapters for the 911?