Not a 100% restored to original car. But very well optioned car with the power windows and very nice. I so like the fact that it does NOT have the body side trim. I hate it on my car and if I ever get a paint job on my car, I'll have it removed. I think it looks so much cleaner without it. All that said, I hope you get every dime and our cars start to get more of the recognition and value that they deserve. A Buick, usually a 1970 Stage car, is always near the top when talking about the fastest cars from back in the day and all the MOPAR and Chevy guys do is moan and complain how that can't be true. But the proof is out there from many a track test.
If you remove the body side trim, I know of a buyer as I need it for my bamboo cream GS455 convertible project. Because the bamboo cream is a relatively flat color(not sure if that's the right term), the body side molding helps in my opinion. To have the contrast of the black rubber in the trim along with the red from the rocker panel moldings. Plus my car was originally optioned with the body side trim from the factory.
Wow power top and rear window defroster? That would be a fun plate to find. Beautiful car,reminds me of the silver 455 4 speed car I all but bled to get to no avail back in the 1980's. Wonderful job and best of luck with your sale.