Michael Daly wrote:

One of the best sources for outdoor gear making is Penny Schwinn. Here's
her page of fabric sources:
http://www.specialtyoutdoors.com/tips/sources.asp

Thanks, good resource! She does not mention how to get eVENT.

Feathered Friends makes down sleeping bags with optional eVENT exterior.
It is the most expensive of three options, nylon taffeta being the chepest
and Nextec Epic in the middle.

http://featheredfriends.com

OSsystems makes drysuits from Sympatex, but perhaps they could be convinced
to make one from eVENT. Their customer service is reputed to be almost
as good as Kokatat's, which I know is excellent.

http://ossystems.com/pricelists/full.html

The Spirit drysuit looks good, as its entry zipper seems to be placed
so as to make a relief zipper unnecessary.