Insurance

I'm just ready to pick up my new 6X12, and after calling my ins. company (Progressive) that I have my trucks and boats with, they say they don't cover "cargo trailers." Called Gieco on a whim, and they said no cargo trailers or "conversions."
What are you guys doing to insure your cargo conversions? The companies are telling me they're not classified as "rv's". And since nothing in mine will be permanently mounted, its definitely a cargo trailer "used for camping."
The thing is only going to be worth about $4,000-ish when all finished, plus some contents that may or may not be covered. However, I would like to have coverage in case someone cuts the tounge lock and steals it, someone hits it while parked, it rolls away, or some other unforseen incident. Progressive also told me that in the event of a wreck while towing it, the trailer would only be covered up to $500 of damage.
Liability is not an issue, as that IS covered while towing by the tow vehicle.
What are you guys doing to insure your cargo conversions? The companies are telling me they're not classified as "rv's". And since nothing in mine will be permanently mounted, its definitely a cargo trailer "used for camping."
The thing is only going to be worth about $4,000-ish when all finished, plus some contents that may or may not be covered. However, I would like to have coverage in case someone cuts the tounge lock and steals it, someone hits it while parked, it rolls away, or some other unforseen incident. Progressive also told me that in the event of a wreck while towing it, the trailer would only be covered up to $500 of damage.
Liability is not an issue, as that IS covered while towing by the tow vehicle.