You might want to check out
www.americancollectors.com
I have found their pricing to be reasonable and their usage policy very liberal.
I have two cars insured with them, one at 22K and one at 14K, plus their best towing pkg ($35 extra). It costs me a total of $310/year.
I sent them a letter requesting a clearer explanation of what they allowed for usage. They replied basically that they just didn't want me using it as an everyday work auto. They wanted to know if I had another auto for everyday usage. I will try to post their reply but don't know how to get it attached in a size that you could read.