Mine were mostly gone, I had just enough left to get an idea of the shape to reproduce them.looking at the rusty floor you have there reminds me how rusted my body mounts were ! You may want to check out the mounts under the drivers seat and passengers seat ! The metal running vertical from the body should be 1/8 if I remember correctly, anyone else chime in ! Inside the box is where a lot of mud and such gets stuck and just rusts and is where your body mount bolt is located.
Keep up the good work !
Cheers