My take on this car as follows
Exterior pictures are not close enough to determine suffucient detail - seeing it in person would answer those details - gaps, surface prep, chrome quality, etc.
The engine bay shows a general lack of consideration for original finishes. Cad seems to be incosistent in quality, color. I don't think the restorer was familiar with these cars.
The interior has similar deficiencies. The leather option in these cars included all upholstered surfaces finished in leather, so that part is correct, but the seat padding is overstuffed, probably not the original material. The headrests do not have the plastic "circles" that provide access to the adjusting bolts on the sides. This appears to be parchment leather which was not available with beige carpet.
Overall, this appears to be a restoration that was done more for appearance than originality. The price probably reflects that. Your decision is whether these deficiencies are acceptable to you going forward. A car with original components will always bring more at resale, so if you elect to spend more now for the originality, it will be returned when you sell. The question is which do you want while you own the car.
Rick