I have some campagnolo levers on my single speed and when I get around to putting flat bars on it I'll be up for selling the levers. I don't know if they're right, probably a bit later, 1980's sometime? If you're still looking I can send you a pic and if they're what you want then that'll be the incentive for me to get off my arse and swap bars!
let me know if you're still looking