Insurance coverage for the TrailManor??

I just bought the TM I've been talking about and went on my first camping trip in it, it was GREAT!! I loved it....but b4 we left we call my insurance company to ask about insurance on the TM and they said they didn't cover TTs and we called a few others as well and they didn't cover either. Well my question is does anyone know of a popular insurance company that insures the TM?? ( An insurance company that I've probably seen on tv ) Thank you!