My Uncle past away last week and left behind what I was told is his Chris Craft cabin cruiser that he built from a kit in the mid 50's. It was a fresh water boat that he used in the Detroit area.It as not been in the water since the 60's. I was told it has a Crowly aluminum inboard. It fits in a 24' garage so I think it's around 21' or 21 1/2' footer. Any idea of what I have here? 