@leonardusius: Sorry, no.
Never done it myself. Only thing that come in my mind is to check how and where DeI team added the new spice resource or check this old Daruwind's thread http://www.twcenter.net/forums/showt...1#post14162411
But there is no downloadable pack, try to PM him, he'll surely be able to help you.
@marseu: sorry mate, Stance None is correct to be in-game with Testudo.
Didn't remember icon was there anyway. It doesn't give any effect, check the green icon turtle and other Stance icons to see stances' values