The live well is a great idea!
I have two concerns about the live well.
1. Fish jump. It needs a screen over the top of come sort. I think you could use one of those DIY window screen kits or maybe shade cloth to keep them from jumping out.
2. How do you paddle with that thing behind you? I guess you could put it in your lap. On the other hand, it would function like a drift chute in windy conditions. If your bank fishing..this thing would rock!
I've got another noodle use, but I've got to get a pic of it first.