So I can't do some of the mods to the 30" bracket I wanted with a Bridgeport- it won't fit. So I decided to look at making it into a 24" bracket with a plasma cutter and TIG torch. I modeled it up and it looks like about 430 lb flotation, less 105 for the bracket mass if I include the side tanks.
Below are illustrations of the bracket placement with a 20" Yamaha F100 motor. It might be a little low?
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