Sknhgy, call Wildtrak Bikes in Alton, and ask when/if the C'Dale trailer will be back- they'll have every size/model available for test rides, and will swap stems. It's a great opportunity if they're coming back this year. And they're right on the River Road, so test rides are easy. If C'Dale isn't what you want to end up with, at least you'll know dimensions that work for you. Also, I think Touring Cyclist rents bikes on the riverfront in downtown St. Louis. might be able to try some different sizes there.
We went to a fitter and had a detailed set of numbers worked up. We then took the numbers to a local (Wildtrak again) and ordered LHTs.