Wrangler Northwest Parts Second Battery Tray - Gas Ford Excursion or SuperDuty
Maybe a long shot. Could be easily modified to fit other trucks, trailers or a project.
I have a second battery tray for a Ford SuperDuty or Excursion from Wrangler Northwestern Parts. It is designed for the Optima or Odyssey Batteries. I think they are about $110.00 from Wranger NW. Looking for $55.00 OBO.
Also open to trades.