Who can you get a trunk pan like cars used to sell? I will cut it above the frame rails. The one I got several years ago from them was bare metal and thicker than the black one I got this time.

I'm not sure who you mean by 'cars', but the new one piece pan from Dynacorn is very nice (at least the '69 one is.

Cars is a parts supplier. The new complete panel is nice but over kill for this car, which just needs the lower part. I cut to above the frame rails and butt join across about where the spare tie down is, and across the rounded edge at the back. that gives one area to finish both sides at the front. The panel I used before just seamed thicker, more like the factory panel.