Go big or go home. Play it safe and go with the f-350 series, or 3500 series in any of the GM models. My gator rig weighs in at 4700lbs empty... i've got a Ford Econoline 3500 van....it pulls like a mack truck and has plenty of space for catering stuffs.
Exec Chef & Pitboss
Gemstone Kosher Catering
18ft "Stalker" Rig by Gator
3 Weber OTS
3 Converted Proofers / Upright Smokers
"from now on I'll connect the dots my own way" ~ Calvin 'n ' Hobbs