Thanks for the suggestions, Bruce. I checked with the state office (in WA that's the Department of Natural Resources, for anyone who may be interested) and they don't have chestnuts, just various conifers. I got some seedlings from an agency in Idaho earlier this year, but they also only had conifers.
The seed I've seen
online (that's still available) can't be shipped to WA so that's why I'm looking for someone
local, that and I think local seed from a healthy tree would have the best chance.
Good luck with your chestnuts!