I wrote a thread about my experiences building one up.
For the specs on the frame size, contact Nashbar.
The frames may be back ordered at the moment.
The frame is heavy and stiff, but strong and rideable. It's not bad for a beater/commuter. I'd even say it's tour worthy, though I haven't had the chance to tour with mine yet.
The welds are ugly, and there isn't really clearance for a rear fender with a wide tire.
Now, go read my thread. The search function is your friend.
__________________
Religion is a good thing for good people and a bad thing for bad people. --H. Richard Niebuhr