Unfortunate that vintage touring bikes arent an option- since the Surly CC in his correct size is going to mirror many of the features and geometry measurements of vintage touring bikes.
The CC will have the same/similar head tube and seat tube angles. The dropouts will be horizontal, the brakes will be canti/linear, and fork rake will be similar to many vintage touring bikes.
The biggest differences are the CC has less bottom bracket drop(by 5mm or so) and the CC has a shorter chainstay length(by 2 - 2.5cm). Those are pretty minor differences that someone who is doing commuting will perhaps appreciate, and someone doing relatively relaxed weekend rides wont be affected by.
I would look at craigslist, facebook, and local bike shops that sell used. If there is nothing in your area- expand your area. Take a day and drive a few hours if there is a good option in a neighboring city. Unless you are in BFE Wyoming, there are sure to be options for a 5'8 cyclist within a few hours of you.