I would look for an old Trek 5,6,720. Good luck finding one cheap, but if you do...

I still like my LHT. Took it out for my shakedown 54 mile loop, and at the midway coffeshop stop, it had a bunch of the racer types checking it out.

Which is funny because there was carbon fiber this and that galore there. I think it was the sage green coupled with the honey brooks, noodle bars and general retro, but new look of the bike.