With all due respect, I've yet to see those modern Tektro levers on a vintage machine without stopping to think that they look like a cheap bastardization of a Campagnolo Record 10-speed brifter.
Personally, I would only use aero levers from the '80s on a vintage machine - the majority of them (excluding Shimano, for the most part), have very pleasing, aerodynamic lines to them, as opposed to the "brick 'n wart" Tektros (at least, that's the way I see 'em)
Here are some aero levers on eBay that I find attractive:
http://cgi.ebay.com/VINTAGE-VANGUARD...QQcmdZViewItem
http://cgi.ebay.com/Campy-aero-brake...QQcmdZViewItem
Take care,
-Kurt