I don't have the Vin unfortunately....
So - did you buy this new or used? If new, ordered or off the lot? Appears to be a base Challenger, not an R/T, correct? Flat hood, yes? Was it built in California (E), or some other plant? What engine did it come with? Transmission? California car with turned-down tail pipe(s)? You calling T6 "Dark Tan Metallic" 'Bronze'? Any stripes or side-moldings before the color change? Never had a vinyl roof? What color interior? Console? Standard or Rallye gauges? Type of radio? A/C? Dual painted mirrors from factory? Power brakes or windows? Plain 14" wheels with covers before you put on the mags? If you bought it new, about what time of what year? (like "fall of '69" or "summer of '70")
It's next to impossible to track one down with so little info - IF it even still exists. The answers to these questions can help start to build a search term list....but don't get your hopes too high....