Those are nice, but expensive...
I have a cooler conversion with a bubble box for when I'm on my jon boat in the river with chubs, when I go to the lake and use shad I use the bottom half of a 25 gal. barrell with about 10 gallons of water with bubble box round is good for shad so they don't get the red nose. If I notice any of them falling over I just swap them in some fresh water, and I'm good to go for a couple more hours. Keeping them cool helps alot also. (Ice bottles as most of you already know.)