Yellow Jersey, Ltd., Arlington WI USA Everything Cycling Since 1 April, 1971! 219 Main Street Arlington WI
The website looks like something I created at school in the 90s, but its a legit company with decades of history and experience with steel frames. They do repair(or contract out, not sure) and are the closest I know of to Madison.

Also, since you dont drive, perhaps ship the frame. Itll cost $30-35 each way to send to most of the country. Below is a local builder who taught a frame class I took. He custom builds, does repairs, and has a paint booth in house. You could call then ship for a quote.
Jeffrey Bock Custom Cycles 1593 Xavier Avenue, Ames, Iowa 50014 (515) 232-9593