If you can live without the Front Derailleur being Indexed, and the shift lever being a Brifter.
any combination works with Friction shifting..
SRAM makes a lever without the Brifter mech in it,
http://www.sram.com/sram/road/produc...ed-brake-lever
add a bar end shifter on that side,
and you can keep the rear Brifter on the right side..