I am a scrounger and pack rat by heart, and after looking around the house, I found the perfect solution for my spindle shaft.
This is a 2 foot 1/2 inch breaker bar that I had 6 of. It is already solid hardened steel, and all I will have to do is cut it to the correct length and cut off about half way up the handle (this will be the new head for my chuck) and mill a little of the crome off so that the bearings will fit.