Keep up the search and good luck. Have you tryed posting daytona wanted ads in both wingcar newsletters.I used to run them and find projects daytonas like the one from Canada for $10K .Maybe one of those 69 charger 500-s you looking at is our .Missing sold from N J Y-4 Gold auto 69 charger 500 formely owned by Jim Benson Cherry Hill NJ 29L9B157499.Jim got it from Francis Burley of GA. Also in this attachment 69 SE sunroof your dad use to have the buildsheet for this 356522 blue 4 speed car listed in his possesion in Nov of 86 newsletter.And this car is still around its a guy whos daytona numbers are close to a friends daytona 356521 .My friend NJ native Paul Kaufmann.So this maybe one of another of your dads old cars to surface as you found the R6 red daytona daytona and his Q5 69 charger 500 so far