One of the expert installers over on the CCA forum posted this for me..
"from what I remember of this car, he is facing a custom fabrication to make it fit. A double din kit from Metra for a Gm vehicle may provie a starting point for him but it will need modification to the kit and vehicle to squeeze in a double din"
I myself did some reasearch on this a little and come up with no out of the box solutions for a double din in these cars...