You CAN'T apply the antelope pack textures to the DAZ Buck - manually or otherwise because they don't fit the buck. They fit the bfBuck (Big Face Buck) not the blBuck (DAZ Buck). The bfBuck geometry is installed with the antelope pack, and there are cr2s for all the antelopes installed into the figure library "DAZ Antelope" folder. Use those cr2s because they properly call the bfBuck geometry. If you want to manually assign one of the Antelope textures you MUST use the BFBuck figure.