That is a very original believable, low mileage Newport Custom that also is very desirable in that shade of green, which appears to be GF3 - amber sherwood metallic.
Given the low miles, the rear is likely sagging from a full tank of gas and maybe some extra parts in the trunk. It is a 383-2 bbl and a new dual exhaust system has been added that mimics the original such system pretty well, even though they are hanging lower than stock in the very rear.
All I would change is the wheel center caps to the early versions that go with the 71s and then enjoy it.
Since it appears the a/c has been converted to 134A, the a/c might even work.
The paint, interior, underhood all appear excellent.
Here is a link to the listing that also has a lot more photos.................
that car was at Hershey last week in the car corral for that price. car looked good I gave it the once over thought it was overpriced but that's me. was good looking car.