Can’t find insurance in New York City

[J Lo]

Hi everyone. New to the forum. I’m afraid I’ve spent a ton of money on a vehicle I can’t even insure. I have a little five window school bus on a Chevy chassis. And no one will insure it. The title says MH which I bought this bus specifically because they told me motor home insurance would be cheaper than commercial insurance. But everyone I’ve called simply says no.
Anyone in the city with ideas?
Thank you