>>1885091>>1885098Also, I just reread your post and missed the part where you're trying to find hard to find types (sorry, been drinking), and while I don't think most seed sellers will have them, you can always contact them and ask them to procure them in the future.
There is also
jlhudsonseeds.net for some more obscure items as well. I think I found your Altai variety here, but not your pskem. Looks like you're going to have to search some more.