I just sold my old boat last night and bought a different one tonight. The seller lives in iowa. He gave me a hand written bill of sale from the guy he bought it from last summer. He never got it registered. I have the plate and registration from the trailer I just sold. I sold it to a guy in iowa of all places. I'm wondering if I could get away with reusing my plate. He also gave me the registration for the boat itself. I'm fairly sure I can register the trailer as a homemade trailer and I'm hoping his handwritten bill of sale says the make $ model of the boat but not the trailer. It has not date on it either. The tags on the boat are good for another year. Thoughts?