need info about boat

[deichner33]

My father has a 68 19' bow rider with a merc 120 I/O all original motor was completly rebuilt a few years ago and has only 20 hours on it maybe.. and has been in storage under cover since .. he goes back once a year and hooks up a gas tank and starts it and runs it for awhile changes the oil and re fogs it... then sprays the hwhole motor with crc .. he was talking about selling it and doesn't know what to ask for it ... also he has the origanal brochure bill of sale and owners book .. can someone give me a ball park figure of what it is worth ?? contact me @ deichner33@verizon.net thank you