The noise should not be a problem. I am thinking of buying 10 s7 and go from there.
But my concern is more the requirements that I must have in the garage to make sure I am efficient, like the electricity requirements & equipment, all i know is that our plugs here are 120v, i am beginner when it comes to that. I know mining is not plug and play so i definitely have to do some home work but some guidance would really help.
Well you'll be loading up 116amp there. Most importantly you will be needing airflow management, otherwise your garage is going to turn into a furnace. And then also; You will need the PSUs, surge protectors, network cabling etc.
And if 80-90dB is not a problem (beside the fact it would tear your eardrums if you stay next to it for too long) then cheers.
If you have more specific question, i'm listening.