You could try contacting a few frame builders and see if they can offer something but it would likely be a ChroMoly tubing then.
Just what kind of bars are you looking for?
Road bend? (there are like 6+ different styles, back in the '80s TTT used to have like 4 or 5 styles themselves)
Criterium Bars, Track Bars, Randonneurer, Nitto "noodle", Nitto 'Dirt Drop"
Track Bars
Moustache bars
Bullhorns
Upright styles, North Road, Dove, Porteur, Promenade,
OH I give up, check out this site almost anythign you could want except Scott "Drop Ins"
http://www.benscycle.net/index.php?m...&cPath=188_232