Based on the headrests, the seatback release levers, the hinge covers and general shape of the seat, I'm gonna say AMC. Possibly Javelin, more likely Matador/Rebel...
Looks like yours is broken/missing. There should be an orange pointer coming down from the top of the bezel pointing at P with the shift lever in that position. You have to remove the lens in the shifter quadrant to get to it. Bent the one in my '74 Charger slamming the transmission into Park...
I have a dash that was hacked for a DIN radio that disappeared. I'm thinking 3 gauges there would look much better than either a hole or a rinky-dink under dash gauge panel.
If you were on the other end of this deal, would you be going nuts trying to find out where the Charger bezel went or would you shrug it off? Do what is right, unless this came from Layson's. They deserve it.
If you are talking about 2 holes in the very top of the seat back, those are for the headrests to slip into. Not all buckets had built in headrests, especially in '70.
You can also try www.originalauto.com . They haven't failed me yet and are quite a bit less on most things than other vendors. They started buying overstock from OEM suppliers in the '60s and all their kits are made for you after ordering. If needed, you can send them your old seat covers or...
The console mounts to a set of brackets that are welded to the transmission tunnel. IIRC RedFish was in the process of repopping the brackets, you may want to do a site search for console brackets since I've seen this subject in a thread here.
Those are out of a Valiant Brougham or a Dart SE 4 door. Mouse fur upholstery (velour) and the map pockets on the seat backs are dead giveaways. I think those were '74-'76.
The ignition and headlight switches can be ordered at your local auto parts store. SOL on the wiper switch unless Year One or someone of their ilk carries it. The wiper knob is held on with a set screw that can theoretically be removed. To remove the headlight knob you have to pull it out to the...
Those are out of a Volare/Aspen. They are identical to the seats in my '77 Roadrunner that I sat in for 3 years. Those damned buttons would burn you good in the summer if you didn't have a shirt on.
They used a vacuum switch to turn the light on and off. Ran off a 1/4" vacuum hose from the manifold. One side of the switch went to key on 12v and the other side of the switch spliced into the feed wire of the fender indicator. Supposedly, it warned you that the throttle was too far open for...
Yep, there was a flush plastic plug in the hole, same color as the column. Always wondered what it was there for. Thanks for clearing up that little mystery.