140 speedo question

[69L72RS]

Here is what I found out last night (I don't think the car is anything special). The original speedo was a 120 (found it in one of the piles of parts), the 140 speedo was out of a later model who knows what. The 12-bolt is a plain 3.07 posi, nothing special. There was too much junk piled on it to get a pic of the tag, but here are the numbers I saws thru a gap under the junk:

02E
ST 68-12437 NOR 90626 BODY
TR 712 ZZ PT

It had remnants of a black interior and the body looked to be painted a dark green color. It had a single fuel line, drum brakes and small block heater core. Forgot to check the sway bar size.
I passed on it when I saw the VIN tag was missing. He says he has it, but couldn't find it. I won't touch a car with a removed or missing VIN tag. Any idea on what this car was originally