I need to find the value of my use boat. I am not trying to sell it. I need to turn the value record of my boat to the Social Security Abministration. My son is disabled and they base SSI on my income & posessions. He has been receaving for 2 yrs now but all of a sudden the bill of sale recorded value is no longer acceptable. No where in my home town can give me a book value on my boat. My boat is a 1983 Happy Traveler 15' 04" with a 1983 70 hp Force out board. Any help would be greatly appreciated.