I'm going to go out on a limb and say that the piece that works with the console is the Chevy part that you can get from NPD (C-12979-100B). Should be the same since it's a Fisher body part and not a Chevy- or Pontiac-specific body part.

I'm more familiar with the '68-'72 A-body, but I am reasonably sure the design is similar from '64-onward for all GM A-Bodies. (There's a break in the P/N between 64-'67 and '68-72.)