I would pay the bill. Then start looking at options. Where you live has a lot to do with your premiums, how much coverage and how old you are, along with many other items. I pay just about the highest rate due to my zip code, that is because I live very close to 4 of the top 5 accident sites in the entire state, so my risk of an accident is much greater. I have State Farm and could not locate a better deal.
I would gather your documents from all your current policies, such as house, cars, toys, umbrella policies and so forth. Call multiple dealers, ask the same questions of each, and get the quotes in writing so you can try to compare apples to apples, which will be difficult.
Ask a verity of inquiring scenario questions; such as what would happen if I am parked in a campground and a flood comes through (connected or disconnected from the TV). What happens is the TT is stolen out of my driveway (storage lot), and so forth. Also ask similar type questions for all your policies. For example, I have an umbrella policy, due to my job. If I insure my HTT or antique car through someone else the umbrella policy does not cover those items. But if I owned a really big expensive boat, which State Farm does not cover, then I all I need was some type of document from the other insurance company (annually) then it would be covered. I pay a little more for my insurance on my antique car, but in the winter I can reduce the coverage, as it is not on the road, which makes it come out as a wash compared to the specialty insurance companies, but due to the umbrella policy I am much better protected.
Quick story; a coworker bought a brand new camper, put it on a seasonal site, bought the cheapest insurance she could get, to satisfy the loan. It was a specialty RV insurance, for season sites, so it was not insured to be on the road. About 2 months after buying it, a freak summer storm came through and dumped 20 inches of rain in just a few hours. The creek flooded, then the entire CG, she had a couple of FEET of water inside the unit. Insurance company came out and totaled the TT. Coverage denied as she did not have flood insurance. She had to pay the loan close to $40K off, with no insurance money, then she had to buy a new TT. By the time she was done, she was out $80K and only had one TT to show for it.
So make sure you have the right insurance, and that you can justify the risks.