I thought about stem shifters, but found a possible solution with the suggestion of an "old steel 22.2 drop bar."

You might be a wrench-neck if you go in your attic and find a bike you forgot was there. I found a bike way in a corner that has a nice chromed drop bar with a 22.2 clamp area. It also solves an issue with the 22.2 clamp on the guidonnet levers I bought and was planning on "modifying." It has a nice traditional bend and should be wide enough for my wife. If not, she says, we can just pull it and try something else.

Thanks for all the suggestions!