Collector Car Insurance
Have you checked Hartford (http://hartfordauto.com/Insurance-Quote/classic-car-insurance.shtml/?PLCode=640018)? They seemed to be pretty ok with both my claims in the past. I did know someone who had his classic insured with them at agreed value. The guy was stranded at the other end of the city during a vintage car drive. His car was towed back by assistance from Hartford! Not too many insurers do that from what I understand.