Above, fur samples from I'm StuffedFur. The grey one is the poetically named #2013. The long mixed buffy one is "Russian Bear", and the short one is "Super Seal Ivory". I'm imagining using "Russian Bear" for the longer buffy fur on the neck and tail, and the SS Ivory for the shorter buffy fur for the handpaws and maybe the muzzle and jaw.
Idea number two! I can use the mixed grey fur I want to use for the grey wolf to do this black and grey fellow as well. "Black Bear" from I'mStuffedFur should work nicely for the solid black parts.