The air was blue when my dad saw me doing this ("What the **** have you done!!")
It took a day to get the black dash from a donor car in the scrappy. The car was a on top of another car so was doing a spiderman in the engine bay and in the car. Didn't help it was pissing down. It only took an hour to take the grey one out and replace it with the black one.
I also stuck an Astra GTE digital dash in there as well.
If anyone needs any help doing the dash transfer and the digital dash switch-over, give me a shout. It's easier than it looks.