Several people have had problems mounting swaybars due to the fact that Type1 bars are designed to travel a bit in front of the lower front beam. This interferes with where some replica manufacturers attach their bumper brackets. Some people have dealt with the problem by cutting out portions of their bumper brackets and welding in reenforcements to accomodate the swaybar travel.
On http://www.shoptalkforums.com/viewtopic.php?f=51&t=127619 (a fascinating thread) FJ Camper posted the following concerning a Ghia:
Front Sway Bars
As we mentioned before, Porsche did not start using a front bar until late in 1954, followed shortly by the Ghia. The Bug got one a year later.
The big difference was in the thickness of the Porsche and VW bars, and how they were mounted. Porsche used a 16mm front bar secured at its ends for a very strong mount. VW clamped a very light bar to the lower front trailing arms. This simple clamping reduced the effectiveness of the bar, and allowed for it to sometimes work loose.
You can fabricate mounts to hold your front bar in place. This mounting arrangement also dramatically increases the efficiency of the bar, making it function like a much stiffer one.
"A" represents the stock mount. "B" shows improvised additional mounts.
It looks like FJCamper has pushed the stock swaybar back approximately an inch to pivot directly under the front beam (like real 356 swaybars did) and has then attached it to the beam at the "B" points with a C bracket, bushing, and a U-bolt. At "A", it looks like one bushing and clamp has been eliminated on each of the trailing arms.
Swaybars are curved outwards to match the angle of the lower trailing arms but I wonder if the offset were talking about here would make that big of a difference. It sure seems simple enough - can anyone think of a reason why it wouldn't work or might cause a very bad day?