Well I have run afoul of another oddity in my current project. I have discovered that the seat tube on the frame I am using has an inside diameter of 0.79" which is smaller than any standard seat post currently available. At least that I can find. Does anybody have a source for some steel tubing with a 3/4" outside diameter that is strong enough to act as a seat post? I am sure there must be something out there but I am not having any luck finding it. Thanks!