Geeze Dave. I'm down to one Yankee -- which I still use regularly. If I somehow find one at at an auction, or elsewhere, I'll grab it and send it to you.
I still use my braces and bits regularly. It may be because I'm old, cheap, and I have a lot of bits. But, when doing things like retaining walls, docks, or borders, I can bore a 1/2-inch hole through double 8x8s or double rail ties, way faster, and without a battery change,than I can with a battery operated drill motor. These are truly cordless drills.
I just need a good breakfast before starting one of these projects.
Old Ken