Leon,
Congrats on earning a big "A".
Maintaining a sense of humor can be a big asset (pun intended) while dealing with bladder cancer; I'd guess you are ready to jump on this speeding train.
As to finding supplies, etc, may I suggest that you use every resource the doctors, nurses and hospital have to offer. Many cancer centers have 'nurse navigators' he/r duties are to guide you through the WHOLE process and make your transition to your new normal as smooth as possible. You may also find that you will be working with a special 'nurse educator' as you learn to take care of your new bladder - it works different fron the old one. And of course, you will have lots of visits and will become best of friends with your urologist over the next couple of years.
Ask all these people ANYTHING that comes up - there are no subject too embarrasing or off the wall (believe me, I tested this out). When I meet new people on my care team, I like to ask, "How do I get hold of you when I have questions ? May I have your card ? Do you prefer a phone call or email. Who is the emergency contact, should I panic over something?, and how do you like to be addressed - Dr Jones or Jim?" I ask this of ALL of the care team members - I want a village to remember me and help care of my bladder.
Spill your guts to the care team about any concerns right up front. ASK until you have a good answer. You are entering uncharted territory, you need a map of the 'hood. No one blinked an eye at my questions, they have heard it all, and they know where the answers are. Even if it seems strange to ask the 20 something (male or female) nurse about sex or how to gracefully pee in the woods on the back 9, ASK. No more holding back until you 'finally break down and go to the doc'.
I think you are going to do fine. Ask here too. Remember to write and let us know how you are doing. Other will want to know, there are lots of lurkers here.
Best
Jack