what year iis this V 20

Hi All
I just purchased a V-20 without a title. The last numbers of the serial number are L990 V 20. I'm wondering if this might be a 1999 or a 1990 boat. The boat has been sitting on a lift without use for the past 10 years. It has a 2 L OMC Seadriive and an 15 HP Evinrude kicker. I'm not sure if the OMC is worth salvaging??? also I will need a trailer and suggestions or comments would be greatly appreciated.