Make the claim with BOTH your homeowners and your automobile insurance company. My insurance company covers my camper with both policies and what one doesn't cover, or has a deductible, the other does cover. And remember, your insurance company is supposed to be your advocate, not your adversary. They have a fiduciary responsibility to you; to look out for YOUR best interests as though they were their own best interests. If your insurance company isn't acting as your partner in your coverage, tell 'em you plan to hire someone who will advocate for you when dealing with them. Here's a link to such a company;
http://www.greenspanai.com/They work for a percentage of the claim, usually 10%.
Good luck with your recovery.