if you could post pictures of the wrecked panel, you MIGHT be able to plasma cut it, replace with new sheet metal and weld it into place.. DEPENDING on the condition of everything around it, but pics would definetly help
I live in western NY and have a 100% solid bed if you're interested, it's a long haul but well worth it. The truck itself is from cali and you're welcome to take what you want (for a reasonable price, of course) because it has no papers and me and my dad are gonna part it out anyway.