Sorry about the delay in getting the measurements. I had to wait until morning to get a good pic of the part. My measurements are close to Strings but not exact. Part of the difference could be his is covered in leather. This is an original part, I have not molded it yet.
Guys, I don't think you want me modifying this dash to fit a G28. I don't have your kits or your cars so I would just be guessing when I cut it down and I promise you really don't want that. If I were building a G28, I would rather get the OEM spec dash and cut it down and fit it myself. If there really is only 3" difference, that is only 1 1/2" to cut from each side. Not a big deal compared to the amount of fabrication we all do on these cars.
I have calculated my costs and I would need to sell at least four of these 4-piece kits (without the heart attack handle) and I won't quite break even. If I am able to do a 5-piece kit including heart attack handle for $600, I would need to sell five to break even. If I sell less kits, my price will have to go up. I would rather not sell à la carte but if that is what the majority wants, I will make it work.
I am open to your thoughts.