Nate what all this means is.
Most of the guys are always concerned about safety. So please don't take these comments as offending.
We don't have the full picture of your rig or your capabilities or the planned truck route (a 10 mile run vs 700 over mountains) so we are erroring on the side of caution.
That being said your original question of a estimate.
Based on Johns experience with multiple fire trucks of multiple years.
I would go with 10k lbs as the weight of that truck in your figuring out your plans. if that is just the truck no hoses, ladders, fittings or water.
