I use a utility with an open aluminium tray back, but then I dont run the risk of having ice and snow mess things up, so an enclosed van would seem your best bet. I am sure others will offer views on brands and models.
This is the style trucks we use at my company They are setup with tool boxes to hold chemicals,traps,and baits sprayers both backpack and a tank sprayer
this time of year the tanks and packs are removed because we get the snow and cold weather on the east coast of the US
Yes they are. Had some destroy a door frame at home. They love to travel through the brick work and conduits. I am looking at starting the termite aspect of my business last since that holds the greatest liability.