2 'v' blocks on the table of the mill, and a clamp (in one of the 't' slots) to push down in the center of the bend. clamp it a bit past straight and it should come back straight.
(machine heal thyself)
Ive straightened shafts a couple on inch dia using 1 clamp with a single piece of 20mm screwed rod (or 3/4 " allthread to you yanks
