Hull ID Number

[strick]

I recently bought a 1975 seacraft with a cuddy cabin. All I have is a picture, a length (23) and a hull ID number. Tried talking to a Seacraft dealer in Florida and he said there is no way to look up the hull Id and find which model since seacraft was sold several times. Does anyone if there are any records floating around were I can match the hull ID number of my boat to look up which model it is?

Thanks in advance.