Livewell in boat seat

I'm sure this topic has been brought up numerous times. I've searched about this but haven't found what I'm looking for. I have a 14' v hull and want to put a livewell in the middle boat seat for bass tournaments. I've seen the coolers but I don't want that for a few reasons and want to put it in the seat. I've seen some plastic ones made for this but wanna do it cheap. I'm also worried about the boat structurally. The boat has a deck over it also. Thanks

Search it on you tube. That's where I learned.

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