I'm 6 feet, and my saddle height is 180 - so I have the same issues with long top tubes and short head tubes. Right now I am liking my new to me '08 Roubaix in 58 with massive head tube. Works pretty well so far. So, buying used may be a good bet to find the right compromise.
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'11 Time NXR Instinct / '79 Paris Sport by Moulton