Welcome, just sorry for the reasons to be here.
I am not familiar with the health care system in South Africa but, I assume there are some good bladder cancer settings at universities and teaching hospitals. I am adding a link on the different types of diversions, just copy and paste as the hyperlink isn't working:
my.clevelandclinic.org/health/treatments/12546-urinary-reconstruction--diversion.
There are some places that are also working on regeneration of bladders. Somehow I have lost that link. Just go ahead and do your research via google or another search engine. You may pick up some new info. Some the major hospitals in the US are MD Anderson in Houston, TX, Sloan Kettering in New York, Cleveland Clinic in Ohio, Stanford in Calofornia fpr starters.