I just opened a case myself. Have plenty of extras, needing the following for a master set:
Flora of the World: 2,5
Animals in Peril: 1,3,4,9,13,14,15,18,20,21,28,29
Portraits in Penultimacy: 7
Uninvited Guests: 5(The only one I really wanted...)
Minds that Made the Future: 1,2,4,7,8,9,16,18,24,25,27,32,33,36
I have plenty of AU/GU to trade as well as almost an entire set of extras from 1-300, and plenty of SPs as well.