By the time you can get a farm built out from scratch it will be too close to the halving. You probably don't realize how long its going to take to do the upgrades to electrical, cooling, and general infrastructure modifications on that kind of project. And who on earth is going to loan you that kind of money? Id be afraid for my life if something on that scale failed to return for the investors. This project is also too large for one or even two people to set up in a timely fashion. I'd say it's a bad move. Profitable mining is coming to a quick end.
The starting up phase on this scale will take you months if not more.
My advice is to start small with 100 miners or so and get a feeling for it. When you are experienced ask you questions. Is it worth it? If yes expand, else you can easily sell your stuff off.