I would think that as a large well known breeder whether with in the US OR locally...
You might have secret projects you would not want people to know about. I hear this all the time.
Plus unless it is a separate facility your breeding business is usually in your home..
While we all try to keep things tidy... it is not always going to happen all the time.
I would instead ask if the big breeder has or would offer an "open house" where herp clubs, 4H groups or a well manner'd and supervised group of adults AND or children could come in and see parts of the operation.
People are fascinated by snakes.
I was in the pet store getting some mice yesterday and they were trying to get one to eat to see if it had been fed the day before. A large crowd gathered and were simply awestruck by the small scene out of the wild taking place in front of them.
You could ask a breeder IF you intend to seriously purchase a snake from them, perhaps sending or paying half up front and when the final payment is due. Ask to see their operation at that time.
We all have concerns over safety, security and the health and well being of our animals.
BUT most have to have their facilities looked at by inspectors ( at least I assume so)...
So if they do that, why not a serious buyer?
Carol