I’m just a hair under 6’ tall with about a 30“ inseam, and much to my surprise with a 191/2 inch seat post; when the Fuji had the drop bars on it; I was quite stretched out and (relatively) comfortable.
But, I wanted more of a semi-fast cruiser (due to back and hip issues) so I put some wide North Road type bars on it and a different stem and seat, so that I pretty much sit bolt upright on it now. I have plenty of height adjustment left on the seat, and leg room has never been an issue even when I had the stem from the drop bars on it with the North roads.
Some European companies are offering Mixte style frames in up to 57cm size, but other than that there is not much available in larger size Mixtes that I have found anyway.

If I had the money and a way to get it shipped over here, I would love to have one of these.. http://www.koga.com/fsi.asp?id=26198 Not C&V, but really nice I think...