Suggestions for mining containers

Hey everyone, I'm working on a project in my country to set up a 4MW BTC farm. I'm in the market for mining containers that can hold around 300 to 400 S19s each. I’ve been browsing Google and there’s a ton of suppliers out there with various options. Does anyone have any recommendations for sellers? Appreciate it!

mining container use different electrical rules when constructed. Best to seek container manufacturer in your own country or in the same region with the same rule. You want to avoid a bad news from customs or local utility company that you can not import it or not able to use the container due to different electrical safety requirements. Did you think about DIY?

What country are you in, we might be able to provide remote engineering support.