barry, as a former installer, I have a few questions for you:
how will you be finishing the floor??? what products?
what substrate will the floor be installed over? OSB, 3/4 ply? please say you are not putting this over a slab foundation.
How will you be installing the floor? I like staples myself, with some sneaky top nailing near the edges where the stapler won't go, but trim or brad nailer will fit, and some nails in the groove or tongue, depending on fit.
3-4 days is usually what we looked for, for acclimating the material to the house, tho' by accident of bad scheduling, sometimes it would be much more, sometimes less. I never had a call-back for hardwood floors for movement issues.
be aware that the material will try to twist, some of this can be taken care of with the BFH must flooring staplers are actuated with, but sometimes it must be addressed by a second set of hands and more tools, we would often use the Bessey - Pergo straps for situations like that, if we were trying to save a box, and there were several boards that had tension in them.
I am sure I had more questions than that a few minutes ago, but memory fails....