Radical Prostate Surgery/Salvage Radiation with Cystitis

Looking for information from patients that have major radiation cystitis from salvage treatment after radical prostate removal that involves decisions on Cystectomy.
Can’t find anything that doesn’t include having bladder cancer as reason for removal. I don’t have BC but have so much radiation tissue damage that surgeries haven’t been successful in repair, thus, the decision whether to have bladder removed. ( Ileal Conduit).
Looking for patients outcomes after, what to expect, follow ups, quality of life etc. Thanks in advance.