OG, Here are the pictures I promised you. First the Kammback on the white 94 VX. My brother said he got it at CCC Racing and he paid $150 about 2 years ago.
The Kammback is 10 inches wide and I know it is helping with aero because it created a "dead air" spot that collects dust and rain drops on the back glass. That's why I added the rear wiper.
Here are some more pictures of the side skirts. I know you will make some that look much better and I plan to copy them for the white 95 VX. HA!
Here is how I attached the skirt to the door opening and also how I "filled the gap" left when the factory "rubber" accent piece was removed.
Here is how the skirt looks from under the car where it attached to the belly pan.
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Here is some detail of how the skirt is attached to the belly pan and the door opening "gap filler". The bottom fastener is a 6/32 bolt attached to the belly pan frame with a 6/32 nylock nut to make a stud that the 6/32 nylock nut you see is used to attach the 2mm coroplast.
Let me know if you have any other questions.