I'd worry less about cosmetics, and make sure all of your splices are capped with wire nuts or crimp connectors. Especially if it's to be stashed away with other stuff in the garage. Safety trumps practicality every time. Don't have much advice to offer besides that, I've never used on of those setups.

What's in the 'fermentation chambers'? Yeast/sugar for C02? I'm just curious, you never stated what you're fermenting.