I didn't realize it was a cat until your last post. I would sail this season with both rudders, but recognize that they might not be well aligned, which will slow you down some.
The other option would be to drop the rudder in the water and try to straighten it yourself. I helped a friend do that one time--we put the rudder between the ground and the keel
of a large cruising boat in the yard, then put a long piece of pipe over the shaft, and pried up until we took the bend out. I asked him whether he was worried about the shaft becoming more fragile due to strain hardening, and he said not for one bend/straightening cycle (it was bent worse than yours). He should have known, as he was in charge of the group which designed SS piping for GE's nuclear plants.