How does a Cannondale R1000 grab you?
Not steel, polished alloy with those lovely smooth Cannondale welds, off the top of my head its a 55c-c st so probably good for your height.
It does take 650c wheels as it is a real TT/triathlon frame, alternatively my friend is selling a lo pro Gitane the same size (a bit more expensive though).
Got period Mavic bullhorns for sale as well.
If you're interested check my sales thread or PM me (photos available on request). I'm about to drop some prices in my sales too.
Regards, Adam