Two policies you already own. Neither one covers the toys.
Here is the assumption that costs Minnesota owners the most: "the truck's insured and the house is insured, so the stuff they tow and store must be too." Your auto policy typically lends its liability to a trailer only while it is hitched, and does not cover the trailer's own damage. Your homeowners policy extends a little coverage to small, low-powered craft, and stops at anything with a real motor, especially once it leaves the driveway or a liability claim happens out on the water.
So the toys get their own coverage, matched to what they are. A motorhome is a vehicle and a house at once: Minnesota no-fault and at least 30/60/10 liability because it is a registered motor vehicle, physical damage because a Class A is a rolling six-figure asset, and vacation liability for the nights it spends parked with you living in it. A travel trailer needs its own physical damage policy for hail, windstorms, and storage-lot theft. A boat on a Minnesota lake answers to the lender and the marina more than the state, and the smart package includes fuel spill and wreck removal, because a sunk boat creates bills that float.
Two Minnesota notes. This is boat country: the state has over 800,000 registered boats, among the highest boat-ownership rates in the U.S., and a lake cabin often comes with a pontoon, a fishing boat, and a trailer all at once. And the seasons work both shifts: hail in the warm months, then a long stretch in storage, which is why comprehensive on a stored rig or boat quietly earns its premium all year. When winter arrives, the snowmobiles come out, and they need coverage of their own.
Tell us what is in the driveway and what is in the slip. One call, one team, the whole fleet — usually cheaper bundled than the pieces were separately.