I got 2 4x8 sheets which was more than enough for no more than 30 bucks. I work pretty fast, but it took me around 4 hours to make. Sorry I tossed the Jig.
Even though the strength of the dash wasn't a priority it turn out to be pretty firm. The main thing for me was weight, simplicity, and access to the gauges. The car is my weekend/track car so i'm not too worried about it.
Umm, about the VIN thing, you could mount it anywhere on top of the dash, But that would be the least of my worries with a loud exhaust, lowered, no speedo, etc.