Those bins are good for drainage. However, they're also good for making a mess.
My main issues are being inexperienced. And having water that's highly alkaline. I'm forever trying to get the pH leveled.
Good fans... I can't stress enough the importance of good airflow and exchange. Even with only 90w of decent led lighting. My cabinet will hit 28°c on a 20°c day. But that's largely due to having crappy pc fans for air exchange.
Mine isn't in a fridge just yet. But, it's indoors. 80cm height by 40cm by 40cm width and depth. No smell just yet. But it's only just been flipped to flowering a few days ago.
I'll upload photos of the plants progress tonight.