yes as stated, any of the pymgy geese, african, Indian, or Australian will have to be bought threw Sylvan Heights, with Mike and Ali Lubbock and are $3000+ per pair depending on the species. As for the bronze wing you asked about earlier there are several breeders with them, aside from the Lubbocks, Mark Hall have quite a few of them. They average $600- $1000 a pair as well though. You have some very good taste in birds, pricey!
If you want Marks contact info, just PM me for it.
I have seen the Lubbocks waterfowl collection many times over the years. NO the pygmys do not need massive pens with huge water. They are a swamp duck, and the Lubbocks had theirs all in small 20 x 20 ish pens, paired privately. Filled heavy with vegetation, logs, stone piles, ect. They big thing for them is heavy cover so they feel secluded. Not a barren, over crowded pen full of aggressive ducks. They will not do well in cases like that. Running water is a plus but is not required, as mentioned they live in swamps, not pristine flowing water conditions like the seaducks do. Of course, that with any duck is best, but it is not a mandatory requirement. Diet and heavy cover will be your biggest concerns to keep right for them.
Like Shawn said though, the Lubbuck's are very busy people, especially this time of year. So unless you are fully prepared, and have cash in hand for a $3000 pr of ducks, just look dont call. They will never take you seriously about them if you call just asking questions with no intent to buy. They are one of the worlds foremost breeders of rare and endangered waterfowl and are used to dealing with the AZA facilities with most of this kind of stuff. So know your stuff, and be prepared when you do talk to them. If they dont feel you are prepared for the birds, they will not sell stuff like that to you, period. Cant blame them, they've spent their entire lives dedicated to breeding these, and in a lot of cases, they are the only ones to get many rare breeds to reproduce in captivity, so just be prepared.
Good luck with everything.