How to restore a 1967 A body console

I've repaired breaks, filled chips, etc.. with 2 part epoxy. I use Devcon Home 5 minute most of the time. Fence areas with duct tape, fill, peel away the tape, sand to size/shape. Cover with gel type super glue and pounce in it to get the desired texture with scotchbrite pad, whatever, allow to cure, maybe a tad more sanding, then paint.
But rejuvenate old plastic? I don't think we can. If we go to so much effort to make it look good again, we'll likely take care of it.