Wow, I'm so sorry to hear of your loss. Makes me feel even luckier considering the recent theft attempts of my '87 GN.
It might do some good to post the VIN # here so we enthusiasts can keep an eye out for the car and/or parts which may come from the car which match the VIN#. If we find a matching block #, for exampe, you can be alerted as to the seller, thus possibly have the insurance company take some legal action.
No matter what, these cars are targets for theives. I learned this very quickly after gettng mine.
I'm just lucky to still have mine at this point and drive it as much as possible so I never forget the feeling I get from driving it. These are bitchin' cars, as you already know.
Please keep us posted as to your experience with your insurance company and the hopeful recovery of your vehicle.
Best,
Eric McCann
Germantown, WI