Following!!! I am super interested in this as well, my AS B190 was pretty straight forward and a policy was issued by Progressive for stated value, my new van, NOT SO MUCH!!!! I called my normal insurer USAA so they could get me in touch with their affiliates and get the ball rolling, long story short, Progressive will not cover the van as an RV because it is listed as a cargo van, USAA will not give a stated value policy only a conversion van amendment that gives an additional $5k in coverage. When I told them $5k would basically cover my bumpers they laughed and said "sorry, this is all we can do". Not what I expected, I have been with them over 25 years. Now I am on the hunt, am going to go to the Motor Vehicle Dept and see if I can get a reclassification on my title. I'll post my findings when if I get any!
FWIW, I live in Colorado