I've posted these somewhere here before (at least once)
Here's my efforts from a couple of months back - couldn't be bothered to take the instrument binnacle off and have to line everything up so made a half-length dash instead...
http://www.weevel.com/photos/sep_sep06/P9090019.JPG (bigger pic)
Since this pic was taken, i've added three gauges above the stereo (had cut the holes when I made it but left the vinyl over the holes). Looks better now but I haven't taken any new pics yet.
I'm pretty happy with it for a first attempt. As I wanted to be able to remove it easily so the car can be returned to original condition, I didn't drill any holes, just used a couple of turnbuckles to hook the dash to the dash rail and to some solid part near the bulkhead like this...
http://www.weevel.com/photos/sep_sep06/P1010201.JPG (bigger pic)