Islamorada Fish Company is a restaurant. While they will cook your catch, that is a single fish to go with a meal. There is a fish market on site I believe. It was closed for remodelling when I went to go in. As someone else said, probably best to call. Im sure they can point you in right direction. 50 lbs of whole fish will be significantly less once fileted or steaked depending on species. Worldwide Fisherman which is at this location is BPS saltwater and they sell Yeti coolers.
There is a fish store also that will do that for you but I'm not sure how much it cost
You should call the restaurant directly if you want an accurate answer
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