There's a healthy mix of Winter Wolves and Mammoths in Hrodmir's southern tundra. Near the entrance to otherworld vortex (Heart of Destruction quest area). That'd cover both winter wolf furs and thick furs, altho there's a bigger number of winter wolves straight north from the city, past the flying carpet.
For deepling warts, Fiehonja's deathlings if high enough level. Else, any deepling spawn in Quirefang would do.