Did you happen to read the long insurance threads and find the contact info for Kelly Newsome with AllState who can refer you to an agent who insures skoolies all the time? Her number is 352-326-9300. Email: email@example.com
Or, Farm Bureau (who we use). Or National General (which specializes in that...and advertises in the bus conversion magazine). Or State Farm. Or Progressive. All have insured folks here.
Who did you try? Fear not...insurance is available.