If you look closely those are 70-71 style rallye gauges (reset knobs in the woodgrain not in the gauges). However that being said a friend of mine has a 72 cuda that she bought brand new that was an early build date car and had some 71 parts on it like 71 rallye gauges, so it may be possible for them to be original to the car, but not likely.
my 72 RAYLLE is a JS and no stripes or louvers,,and ,mine has the correct 72 style raylle dash but no seat belt warning light on the corner part of dash or any seatbelt warning,. but does have an 8k tac,, but no body side molding ,,i have window sticker and all documentation that came with car and i know the first owner who bought the car and it is original ,,i have fender tag and build sheets,, was sold in 71 an built in oct 71 and $8000 is somewhat high but not that far off
It is a JS car and sits with with no bondo and would not need a complete resto. We can argue about what is worth more or who has a 70-71 or who has a 72. I believe 8 is a fair price for what the car has and how hard it is to find a solid car not a rust bucket or looks like swiss cheese. Also, i have tons of extra interior pieces that are whole with no damage i.e; center consoles, steering wheels, instrument clusters, extra gauges, door panels, sail panels, kick panels lower heater control console, brand new headers(aftermarket) two brand new carbs, upholestry, tailights, the strobes that came with the car, sill plates, and misc stuff like new plugs and wires, lamps, gaskets.