Fender Tag Decoding '75 Duster
The other thing I noticed was that your car's trim level code
( 2nd character in the v.i.n. ) is that it's an "H" ( High Price Class ) , giving it the obvious VH29... prefix .
This "dispels" the long-standing school-of-thought that the 360 was legated to option status only in 1976, and not 1975 ; the Duster 360 models had a v.i.n. of VS29 ... ; 1975 was supposed to be the last model year for the Duster 360 and its brother the Dart Sport 360 ( LM29L ... ) .
IF you were to restore your car to the letter of its option status / originality , I believe that you'd have one gorgeous car in your stable !
Perhaps you can ascertain the contact info of the owner of that beautiful silver 360-powered Custom that's on the Hang 10 Registry site ,and he or she could help you with your car's restoration ; let you know how the materials were acquired in order to restore that beautiful interior .
Seeing that it's a Canadian-market car makes it even more valuable , in the capacity that you've got a survivor from that wintry , salty demographic !