Quick Update:
I have been searching for a new seat ever since I was told that the seat I had bought was not for a 67-72 truck, and that it was in horrible condition.
I found a used seat in Canada at Bill's Truck Shop, the same place I got the impossible-to-find spring support braces last year. The seat was $500 CAD or $380 US.
Shipping would of course be way too expensive. I got a call for a last minute work meeting in Watertown NY, drove up for the meeting and took a detour into Canada to get the seat.
Canadian Customs was fine; they did not even charge me a duty tax. US Customs "randomly" selected me to search my car and waste my time. But they were polite, other than I find it strange that they make you wait inside while they search your car WITHOUT you being present.
The seat is in really good condition, and super soft. The upholstery is in good but not great condition, but we will event change it anyway as my wife does not like the colors.
