Looking for - Alum. bench seats for cartopper.

[Time]

It's a long shot, but if anybody is trashing their aluminium cartopper, I am looking for a couple of bench seats.
I want to replace the plywood that is currently installed, trying to lighten the load.
Need to span 44" gunwale to gunwale.

Or looking for good ideas to achieve the same goal.

Thanks

Doug

 

[Roofus]

I tore my plywood out and put this cutting board plastic in, had industrial paints and plastics cut and bevel it

 

[Time]

Thanks for the comment and pictures Roofus.
That's similar in layout to what I currently have, but I used 3/4" plywood.

Would still like to do it in aluminium.