I had to do this for a customer a few years back. What we did was lower the mounts to the front sway bar 1.5 inches. Then we installed adjustable heim joints on the front that were 1.5" shorter (lower). The bar measured the exact same angle before and after, and there was no binding, etc. When completed the car ran perfectly, and handled the same (I pushed the car VERY hard _at customer request_, to make sure it was safe for him). So yes, it's possible. I wouldn't do it unless you _need_ to, just to be on the safe side, and your mileage may vary, don't try this at home, and other warnings here. If you move the sway-bar WITHOUT changing the the links as well, so that everything is the same as stock, there very well could be negative handling problems. If you're going to do it, DO IT RIGHT, and do it right the first time.
It may sound silly, but there are these two corners near my house with a field on each side (in the middle of nowhere). This one curve could be taken at 35mph with stock sway bars, and 49mph with the aftermarket sway bars without sliding out. I was able to do back to back runs within a few hours of each other with the changed setup, and it consistently would take it at 49 just like before, but at 52 it wouldn't anymore. It may not be empirical proof, but Having driven hundreds of supras, and my personal supras over that part of road thousands of times, I can say it didn't seem any different to me. And I couldn't tell the difference at any speeds approaching sane.
Jeff