I'm having a 48' custom express built. I was thinking about having the guys make fish boxes with copper lines run on the bottom and sandwiched between fiberglass. Now the questions. 1) What is the best way to accomplish this? 2) How is condensation handled below the box? I don't want it dripping into the bilge. 3) If we have a refrigerated fish box will we still need to add ice or a saltwater slurry to it? 4) Since it is a custom boat is it feasible to have this system also cool a drink box that I want to have built into the tackle center area? 5) Am I trying to reinvent the wheel? Should I just get an Ice maker and a water maker set up and forget the idea of a refrigerated fish box? 6) Are there any sportfishing boats that have refrigerated fish boxes?