Greg, I'm pretty sure the Challanger 1 ran Pontiac Engines, not Hemi's. The bottom picrue was taken at my Old Stoompin' Grounds. The Track is the (rip) San Fernando Dragstrip. The Grey "V" to the right of Mickey's head is the Pacoima Res., the Hay Bales on the left of the Track were to keep folks from driving into the Wash that's behind 'em (which some still managed to do. I couldn't afford Tickets so I watched from the overpass at the end of the track.
Your Top set are the same as are in both of my '68 GT-500 Shelby Mustangs. Both with #6541 on the Box, although one has a Green Car with Black outlined Orange Decals and the other has a Red Car with White GT-500 Rocker panel stripes.
Heck it sez Make Offer. Toss out a number less than 1/2 of what you'd be willing to pay, Who Knows!! Sometimes when I see Offerings like that I wonder if they'd still post it if they got charged per post like Classified Ad's in News Papers.