Copy that, Bill. Like I said I was just throwing it out there to get the mass opinion. GM wasn't specific about which vehicles contained this info. All of this helps. If you look at the order form on the GM site, it requests the trim/paint codes. I know I can decipher the codes on this site but I'd like to know what other options came on the truck. There's patched holes for the heater, the dash was cut for a radio, there's mounting holes for arm rests in the doors. Additionally, Tim mentioned that a maroon interior could have been from a Deluxe model. All these questions I'd like to answer and I have little resource left on the truck. My style of restoration is taking it back to exactly factory spec (or as close to as possible with available parts). I'm a perfectionist when it comes to that.