Re: need a title
How badly do you want to title/keep this boat? I purchased a 1961 Larson 14' boat out of state and received a bill of sale only. To register the boat, I had to have a title. I could not get the title because the original owner was unknown, and the boat was so old that it wasn't on the books in the state it was purchased from.
Here is what I did. I found a service on the internet that provides titles for a fee. You sell your boat to them, they register it in a registration only state, and then they sell it back to you after it's registered and provide you the registration, bill of sale, and a note stating the state where it's registered is a registration only state so they have no title. You take this info to the DMV, Parks, or whoever does boat registrations in your state and get it transferred to you. You will pay anywhere from $100-$200 for these services. It was a little nerve racking to sell my boat to them, but I received all the paperwork back in just over one week and registered/titled my boat with no problems.
I'm not sure how you're going to do this w/o a hull number or serial number though? Is it possible you've overlooked the number?