i found a 1 owner 87 gn,but it has some problems and i need advise.he said i can have it for $5500.00,it needs 2 front seats recovered,paint its original and rough,dash has a crack,carpet needs replaced,t-tops and under the tops is very rusty,doors are rust free,trunk area is rust free also,car has 98,000 original miles,whats it worth.thanks for the help