Hello guys,

I've just emailed John last night, and here is his response:

"Ordering 3 systems will not take longer.  3 different technicians will
be working on your order simultaneously and will finish at approximately
the same time.  I have instructed the factory to drop ship your order
directly to you when it's completed."

I hope ordering 3 systems will turn out to be good ( e.g good ventilation and consistent density).