My advice is to make sure how much electricity you have. It would be important not to overbuy on gear. i would advice on electricity run 240 to save cables, also it's much nicer to have all that power there if you need it.
Also ventelation you will need to find some way to cool it down. With winter for a lot it will help a lot. But be aware cooling down the mining area most likely is needed.
Sage advice. I over bought equipment on my first mine and was shocked at the heat output of just 10kW.
There is a lot to be said for doing it in smaller batches. Do X amount run it for a at least a few day's to week then order more. Repeat until your happy with number, or you can't handle more.
Going from 0 to a lot is just a major undertaking. Only reason to do it is if your ordering so much you got a discount (most do not fit into this). My summer it was a lot of trial/error. I had to much and kept adding things to help with air flow till I was good. Would have been much easier on myself to do smaller a few times.