Every house I ever built that included hardwood flooring, I used my Norwegian installer. The best I've ever seen. He does anything you want. The oak or maple field with black walnut inlays are spectacular. Unfortunately he's in Orange County. However, I wouldn't be surprised, if for the right price, he'd make the trip to Bklyn.
The father, may he rest in peace, was Odd Nordahl. His son is Alf. Great guys and they know their flooring.
BTW, did I mention, I was a General Contractor. This was not a single house here or there. It was LOTS of houses.
Russ