Emily, I am so sorry to hear what you have been going through with your K pouch. In dealing with difficult pouch problems, experience of the surgeon is a significant factor to consider. In no way am I implying that your surgeon is not qualified to deal with your current situation. There are two BCIR surgeons in the US who have extensive experience with pouch complications: Dr. Don Schiller in Los Angeles, CA and Dr. Ernest Rehnke in St. Petersburg, FL (my surgeon). As a starter, I suggest that your surgeon contact one of them for their recommendations before you have your next surgery. Having a temporary ileostomy for several months sounds like a good idea. Please keep us posted, and best of luck.
Bill