There are some liberties taken with the car, that's for sure. Adding all that stuff, to me, adds nothing to the value of the car. I'm not the guy to restore a car to showroom condition, but I do know these cars somewhat. I've had a number of '71-'74 B-bodies.
The bumpers should be chrome. Body-colored bumpers came with an added-on "eyebrow" on the front bumper of '71 Plymouth B-body coupes, but were not available for '72 at all. The louvers should be black. The only thing that's not painted blue, and it should be, is the engine, but its plug wires should be orange (electronic ignition). The spoiler options were gone for '72. There's a lot here to correct; gaffs like the engine color would drive me insane. I consider painted bumpers to be a "cheap man's solution" to the issue of less-than-stellar chrome. It rarely works. He should've really put the Rallyes on it to advertise; those forklift-profile wheels are hideous on something so otherwise, er, "stock".
Unlike the E-bodies, though, the values on the B-cars don't tank in '72. They tank with the '73, when Chrysler ruined both the looks and the suspension in one fell swoop (the only carryover body panel between a '72 Charger and a '73 is the rear window filler panel). A well-restored 4-speed U-code car could bring what he's asking if not more, but he's way off the mark with all the gee-gaws, add-ons, errors and extra holes. These are the last of the factory 440/4-speed/Dana cars, which does count for something. As it sits? I wouldn't go more than $25K on it, maybe $30K at the absolute outside if all unseen is perfect, but I could see someone thinking it was worth more than that and paying $35-$38,000.
