The parts are cramped in there around the sway bar and frame, but there may be a straight line of space near where the OEM bar runs. Note that the 95-01's have it mounted on the vertical part of the frame, and 98-01's mount it under the frame a few inches away from the same place.
How much is the Addco 1.5" front bar now, is it too high now? They would be the place to get one from. Here they are being asked to make a bigger rear bar, and may do it this Summer. On the Mark VII forum, they are talking Addco into making their rear bar for that car, which is also tough to come by. I'm glad they are still in business.