Wow, what a nightmare Jeff.
Definitely dont do the bent rod route! I am not sure how you could lengthen that fork in a reliable manner, especially with it not needing to be much longer. If you could figure out a way, I might say thats your best bet. I know I wouldnt mind my fork being longer as the pedal effort would be easier, but then again you will lose SOME T/O bearing travel if you lengthen the fork so keep that in mind. Wether or not its enough to cause issues is unlikely im guessing.
Maybe re-welding that plate so that the slave is at an angle would be best really. If you do that, I would make sure that whoever welds it, doesnt go to town with the welding all at once. I know its away from the edge of the bell quite a bit, but warpage would still be in the back of my mind!
If you do re-position the slave, get it tacked and double check the actuator rod and make sure its far enough away from the fork, etc.
Good luck man.