I would use this as your out:
"Pick up trucks with no body type modifications (utility bed, stake, etc) and an unloaded weight under 8001 and a GVWR of 11,499 and under are excluded."
I have a crewcab dually C4500 with a longbed pickup box on it. It was upfitted by Monroe Truck Equipment and is trademarked by GM as a Kodiak Pickup. So it basically looks like a chevy dually on steroids. I've had it since 2008 and have never put the weight stickers on it. I keep them in the glove box just in case. I've never been stopped and have gone past many Weigh Stations and never been chased down by the weight police.
I'm posting all this to suggest you use the pickup exclusion and just show 10,000 lbs on the form.
