I have a F700 that I got in a trade for some labor. I decided to remove the 24' box and change it over to a pickup style truck. I got rid of the standard cab and swapped a crew cab. I picked up a cheap dually bed and put that on. I got some 22.5 alcoa wheels with 255/70/22.5 tires. I could go bigger but the wheels and tires i got were already mounted and really cheap. I took the 429 gas engine out and swapped a cummins in there with a at545 trans.