Want to Buy WTB: Extension rail for wooden Kodak 5x7

I have a Kodak No. 2 5x7, circa 19-teens. I had a nice new long bellows put on it by Jim Ormond (Western Bellows), and I'd like to take advantage of it. The camera accepts a quarter-turn brass key to lock the rail to the baseplate.

I will consider buying an entire parts camera that has a restorable rail. I don't need a cosmetic gem. I just need something that works.