looking for 68 bed

[oj70chevy]

Hello, I am helping restore my grandfather’s 1968 pickup that was passed down to my brother. We are at the point where we need a replacement the bed because it is way to far gone (rust and holes) to repair. We need a 68 long bed step side w/tire mount (or similar that will fit with out doing any mods). Can anyone help us out? We would prefer some ware in Texas if possible but would be open to anything. Thanks for any help you could give in finding a bed for this old truck

Thank you
Ralph