Where is best place to get a driveshaft?

[Davidb]

I put this in my other question about what the shaft is made of, but no replies. Marine Machining in MI quoted me about $250. OJ Props recommended me to them. Where is the best place to get one? The cheaper the better, haha. Its a 1973 S&S. Single taper, keyway and two set screws on coupler side, keyway and threads with pin hole on prop side.