You can also get them from hespornis, karkinos, kairuku and mantis, all of which are in good numbers on the map, use a club, also get some achatina for organic polymer.
Between all that you should have enough.

oil rocks up in cold area.

lots of penguins for poly up there too

Looking for honey, hard to find.

So far I have seen sulfur only in the black volcanic region just to the north of the desert region.

obisdian location?