gotcha... not sure the size but 26.0 I think... They are factory Motobecane bars.
I've got Sakae drops which run the odd 25.4 near the stem. I just fit up a Shimano Tiagra front caliper set with a stubby little BMX lever right at the stem. The bike's in the garage right now, but i think the lever was a Diatech? It's some cheap-o thing I got for $19, I think it might say Tech99 on it too...If that helps. The tiagra I ordered from my LBS here in Berkeley, was about $30. By no means bomb-proof, but reliable enough for my budget.
I looked around for used, but ran into trouble because of my odd sized bars...
Salsa makes a nice short little cross lever that will fit your 26 bars, and they come with a handful of shims too, but it'll run $40 and they're sold as a pair.
I say go to some skate/BMX shop and root through the levers...Hope this helps.