I just purchased an Aluminum Goods Ltd. boat as well and also looking for the year. Mine is identical to the pictures accept painted black no windsheild 14'. I bought it, as it's still solid, a minor leak in the rear nothing a pump cannot remove and holds a 40hp Yamaha 2 stroke, it flys.
However I would like to do some restoration on it. With the information provided, I also have found very little on the company, I do have the model and serial number plate, and can tell my boat was originally painted blue at one time. Are these Aluminum Goods boat's classified as antiques?