Yup, now it would be worth something, back when it was 4x4'd the Polara was probably bought for about $300.
The numbers I could find on it:
6345171098
Not sure if it's the VIN# or not, it has an assigned VIN from the 4x4 conversion.
It has a surprizingly solid body, just kind of a neat oddball vehicle the way it is.
I can remember this "car" from when I was in highschool and it was runnig around.
My buddy found it when he was over in Boise looking at a custom Ford unibody truck and wound up buying both.