To the best of my knowledge, they areonly good to hardiness zone 5, and I think your area might not fall into that. If your looking for ealier acorn production as your main goal, you might be better off looking into hydrids.
Here is one place that has them (and they are in Battle creek)
http://www.morsenursery.com/
I don't have any personal experiance with either the place of the trees