That is beautiful. I think you are in the $12 - $15K range. You will need a buyer who wants a show quality unique prostar. Because unfortunately you can buy a decent 91-94 or 95-97 in the same price range and both are considered much improved slalom boats.
40th Anniversaary X14
'97 Prostar 190 - LT-1 (For Sale)
Prior boats - 2009 X14, 2008 X14, 2005 197, 1988 Tristar 190, 1989 Prostar.