Matt71 said:I wonder if mislabeling the box would fool anyone.
I just bought a heavy duty, plastic tote box at Costco for $9. While sitting on the rear, black, steel carrier from Harbor Freight ($50) to one side, I can still open one of the 2 rear doors. This fits my $70 HB generator. It has holes to fit 6 padlocks on it. It's not super thick and not as nice as something like this: http://www.walmart.com/ip/Rubbermaid-48-Gallon-Action-Packer/10569596 but something too nice may probably be targeted, even for the nice box itself.
Personally, I wouldn't risk a $1000 Honda generator in any box in the open for a long time. It just screams that you're well equipped with more stuff inside the van. Maybe wrap it all nice and tight inside 2 large trash bags to prevent smelling gas fumes and store it inside the van.