There doesn't seem to be any tandem shops nearby, or at least a Google search didn't provide any. It would have to be in Omaha, Lincoln or possibly as far as Kansas City. My LBS has a T900 coming in a few weeks and would probably give better instruction other than, "Sure. Take it outside and ride in the parking lot" without any instructions whatsoever.

This guy has a tandem for sale in Lincoln on Craigslist. I like that the top bar slopes down so I don't feel like I'm confined and it looks bigger.