If you were in my neighborhood, I'd be happy to help with it, but as I recall, we're far apart. What I am describing would require a little finesse, but not a lot. Just think about what I said, take it one step at a time. All you would be doing, in essence, is removing the high spots from the effect of the bend, the center of which you don't know and don't care for what I am describing.
If you were willing and able to spend a bit on it, you could have the bearing journals sprayed up and reground dead true to each other, and really, that's all that counts for this. After getting the spindle true, of course, the register surface of the chuck and faceplate mount should be skimmed back square with the "new" axis. If the spindle is bent, then that surface must also be out of true.
Maybe someone near you could come to your aid.