Our sponsor Ron Taylor of Fishermen's Feathers at fishermensfeathers.com is the best source for this material as well as many other rare items. We would need to obtain a CITES permit for buying it but once obtained we can process group orders.
The permit is $15 per species so I suggest letting the FORUM get the permits. We have one for jungle cock already. I will get one for seal, I use seal a lot as body dubbing for steelhead and salmon flies.
Alternatively contact Phil Castleman, a US reseller of fishermens feather's materials. Phil is owner of Castle Arms of Springfield Massachusetts. Tell Phil the Flyfishing Forum sent ya!