After some fiddling around, I think I've gotten my Kuwahara fork bent back in to shape. Here's how I did it.
I started by bolting the fork to my workbench using u bolts - 1 1/2" for the steerer tube, 1" for the fork tubes.
Notice how the bearing cone extends beyond the steerer tube. I hand-tightened the nuts on the u bolts so I didn't bend the steerer tube.
After the nuts were all hand-tightened and very snug, I began bending with a 4' long piece of 2" dia PVC pipe. I used my right hand near the end of the pipe and my left hand on the work bench. If you decide to do this at home in this same manner, beware. It doesn't take very much effort to bend the fork. I wanted to bend only a very small amount at a time so I didn't over bend and have to bend back. I believe over bending and bending back will weaken the fork.
I used reference marks on the workbench to check my bending progress.
To check my progress, I placed a straight edge along the fork tube first on one side, then the other.
Doesn't look like much space here at the top of the steerer tube.
There's loads on the other side. I split the difference and measured from my reference marks near the drop outs. More bending to do.
I actually had to bend the other side - the side I thought was the non-bent side. I bent that in slightly toward the center, and pulled the bent side out again very slightly.
There, now the measurements are equal on both sides.
I had to do a little bit of bending to get the fork ends to be equal (level) on the front-to-back axis.
Then, the last item I checked before declaring myself done was to measure the drop out spacing. Perfect.
Fits like it should now.
One last item - since the fork had been bent, and I did more bending to get it back to close to factory condition, but not quite, the fork drop outs are not parallel. They should be parallel so they don't place too much stress on your front axle, and especially your skewer. A broken skewer equals broken bones or worse. Be careful. Take the fork to your local LBS to see if they have the whereabouts to fix this problem for you.
I did put the fork on my bike tonight and rode for a little bit. I can now ride no-handed on the Kuwahara!