I am not the owner or seller but thought this would be worth buying.
1990 Maserati Convertible. AT loaded, leather, 2 tops, local 1 owner, 165,000 miles $3900
Dave's Car Corner, Hartfort City, IN 765-348-5770
He says it was rust proffed when new and the only spot that has bubbled up is near the gas filler door and about the size of your thumb.
I have no other information, but give him a shout and shoot a price at him.