Have you thought about getting another bun with snuffles as a friend? Rescues will have ones with snuffles, it is quite a common illness.
Or you can get a bunny from a rescue that you know has already been infected with pasturella but does not suffer from snuffles (it doesnt necessarily have symptoms in some buns, their immune systems keep it in check), by living with or next to a bunny who has pasturella.
My bunny has snuffles and like you I was worried about infecting a bunny, I know it is not certain for them to develop the illness from catching pasturella, but I would have felt terrible if they had gotten ill and I had knowingly caused it. I thought for a while that I would not be able to get my bunny a friend and I felt awful for not being able to give him the companionship he needs. But tomorrow I am going to Windwhistle Warren Rescue to pick one of a selection of rabbits that lived in a garage with a snuffles bun who had pasturella, so they are all infected even though they arent ill from it.
So wait till you have your bun neutered, then contact lots of rescues asking if they have any buns that have snuffles or have caught pasturella.
New bunnies come into rescue all the time, and there will be loads of them coming in after easter.
