Rack for breeding?

I'm looking into breeding ball pythons so naturally, I'm starting to look into breeding feeders as well. I know a lot of people use concrete mixing tubs in their racks and building one doesn't seem difficult but personally, it'd be easier to buy a plastic storage unit from Wal-Mart, one like this

http://uploads.tapatalk-cdn.com/2016...612cf82922.jpg

Is that ok to use or should I just build a rack for the mixing tubs?

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Build a rack with concrete mixing tubs, those will not hold the wait, they will not allow proper airflow (proper ventilation is very important to prevent repiratory issues as well as other issues due to amonia building up), they will not allow for easy feeding and watering and you will end up with escapees everywhere.

There is no shortcut those are neither made for snakes or rats.

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