It's done. I used 4 aluminum tubes (3/16", 7/32", 1/4", 9/32") and put them one inside the other. I used 4 because I have kids and knew it'd get beat up. I tried bending this myself and couldn't do it. I'm pretty sure the flight stick would break before the shaft bends.
The tutorial at
mamecheats.fateback.com/tutorial.htm shows how to cut the plastic piece coming out the bottom of the Raider Pro so you can insert a new shaft into it, but I did not do that. The 9/32" tube fit perfectly in the part of the plastic piece that this tutorial shows you cutting off. Instead, I just used some epoxy to cement the tube in that piece. I used the dremel to cut the tube to length.
The mamecheats tutorial uses a plastic stopper to control how high the flight stick sits on the control panel. I used a rubber grommet instead. The rubber grommet works just as well, and it actually does a pretty good job at keeping the joystick from rotating. I used the epoxy to cement it at the right position on the tube.
After that, I used the dremel to create a grove in the tube where the e-clip needed to be. I put the remaining pieces of the e-stik (spring and 2 plastic pieces) on the shaft and clipped the e-clip on and OH YEAH! I've got a Raider Pro flight stick on an e-stik base. I can switch from 4-way to 8-way easily, and the wires for the flight stick come out the bottom of the tube since it's hollow. Now I just have to finish the rest of my cab so I can use it.