Try Geico or Progressive I've had both since Allstate wouldn't insure my express 3500 extended passenger because they were convinced it was a dollar van.
KBB lists retail book value in my area as only $32k plus add whatever that top is worth minus the value of the factory hardtop. It's a decent price but not a screaming deal. At least it should still have 2+ yrs/55k on the factory powertrain warranty