Radical cystectomy-saveing the prostate and Continent diversion vs Bag

I am a 63 year old very active male. My wife and I live on a boat and travel. (Now on hold due to my condition) My Doc states it is normal to remove the prostate along with the bladder. So far all test show the prostate is OK. I wish to take the gamble and keep it.We have a very active sex life and I do not want it to stop. Yes I want to stay alive but as a male you should undersdtand. Also I am leaning towards the Continent diversion  vs the Bag, due to our life style.I only have 2 weeks to decide any advice will sure help.All this is very hard to deal with. HELP. We live in Palmetto, FL