"Gray Market" Insurance in the US?

Hey there,

Was insured by SAFECO with a collector car policy, which worked well for me. I'm in New Orleans which has some insurance problems, but they were willing to cover it at a great price for the same coverage I have on my daily drivers. I told them this was an imported japanese right hand drive diesel van from the get-go, but today I get a letter that I'm being dropped because it's a "gray market vehicle" which is defined as a vehicle not originally intended to be sold in the US.

Has anyone dealt with this / have good recs for insuring delicas? Mine's a 1997 L300.