Dear Bill, Jim, Kevin, Loren, and mid-60s Buick caregivers,
Well, the secret experimental 460 CI BBB made it home today.
. . .
Congratulations!

I do hope you didn't have too much trouble with all the
secrecy! 
https://www.racingjunk.com/Buick/182851750/1964-Buick.html#1
Thanks for sharing! I'm sorry that a lot of the tailgate moldings were lost over the years but it does look reasonably nice overall.
I'm sure is been modified, but I'm curious what the source was for the center console.
It is possible to build your own console and have your upholstery outfit cover it in vinyl. A friend of mine did that to camouflage an aftermarket floor shifter on his 1971 Chevelle. He might have started with a console core but he extensively modified it.
I'm definitely feeling that
"bucket seat itch." Unfortunately, the local upholstery guy bought all the green fabric he could get when he redid the bench seats. So I don't know if could switch Biquette to bucket seats. For many years I had a "saddle console" for pickup that sat in the space between the front passengers. Before I make my life that much more miserable, I'm hoping to look into that first.
I like it too but wish they would have left the door handles on.
Okay I give up - so how do you get the doors open from the outside?

Oddly, the fellow left the outside switch to control the tailgate window motor. If he really wanted an extremely clean look, he could have removed that too and only moved the tailgate window from the dash switch. I definitely don't understand what was the big idea with eliminating the door handles.
Cheers, Edouard