Originally Posted by
bikingshearer
Three obvious solutions being overlooked here. (1) Go with stem mounted shifters. (2) Convert the bike to a fixie. (3) Sell the bike and use the cash to buy one that already has barcons.
Okay, I didn't they they were
good solutions.

Funny, but seriously, good stem shifters on a friction shifting bike is a solution that shouldn't be dismissed. If you ride on the hoods or tops almost exclusively it can be more convenient than bar ends. (Hope this statement doesn't cost me my vintage bike tourist certificate!)