I chose to put the Markhor in Essential for the PZ2 Base game. Like others have said the model and design is really good so it shouldn't need a lot of work to import over. Alongside that it is one we had to wait for for a long time in PZ1, I feel that since it was a requested and iconic species, it would fit into the base roster of the next game. Its a Zoo Tycoon classic which also adds to its appeal - and finally it is a caprid which would definitely be needed for the base game seeing as we barely had any in the PZ1 base game.