I had mine with Co-op it was $124.00 for all perils, value $10,000.00 so that maybe close.Just put collision, fire and thieft, and liability on our enclosed (Liability was 20/per yr) (Collision 70/yr) (fire and thieft 40/yr) the value $$$$$ for the trailer drove the collision and fire and thieft Ours was around 11k so for a 30k trailer I could see 300ish. I'm at Allstate and was told they are one of the cheapest for trailer rates.
I was told by Allstate it is NOT covered by the tow vehicle.
I have a good agent that lets me know whats, whats before my claim.