Dam Marty--I'm surprised you havent wrecked your car with jist 3" of clearance!! Scarey for sure.
You can ask Kirk but I'm almost positive that my VS, built on a 1968 pan is just about exactly what you are working with. I will attach a photo of the one I found that works perfectly with this pan when lowered. This is the EMPI one and works pwerfectly. But DO NOT use the crappy steel clamp they offer--no human can get these clips on. Instead, use the Mid America Products (800/500-1500)
Urethhane sway bar bushings, item # 308-073 @ $14.99
Stainless Steel Bushing clamp set Item # 308-080 @ $29.99
Use a 12" Tongue and groove joint pliers to squeeze the clamps to start the nuts--its so super-easy thisway but horrible with anything else in my experience.
Next, if you haven't done it yet, get yorself a camber compensator from C. B. Performance (559/733-82220) This is their part # 2819 and is $54.95.Amazingly easy to install. This will change your life and may even save it because it prevents the wheels from tucking in as you take a fsat, tight turn which can cause a VW based car to roll over! For high performance cars this is even more important!
You can handle this before Carlisle and won't believe the change to your car's handling. It will still have that smooth, nice ride and handling but will turn like it's on rails.
Good luck with that gorgeous car,Marty!----Jack