I have a 1960 Blue Star 16' alumn. v bottom-the dash has a speedo and fuel guage and a hole were a clock used to be-(I found a badly crumpled up clock face and needles behind it)-I'd like to 1-smack whoever tore out and destoyed the clock,and 2-replace it....seems by memory to be about 2 1/2-3"diameter- I am guessing there was likely a common source for theese instruments that many boat companys used-are there boat salvage yards someone might suggest or maybe a reproduction/replacement new part source?