Took a look at Frenchy's beetle. He took the complete front axle with (the theoretical) engine mounts and built that under his bug. The beetle cup wouldn't use that, because the change is too deep, too much Porsche, not enough Kafer left, would be the reason. Btw, it looks pretty good done for a SB Cabrio, besides I hate the rabbit engine conversions. Too much weight on the rear, engine revs and torque isn't conform to a boxer engine.
Here's a direct link:
http://www.superbeetlesonly.com/members/2/frenchy6.jpg