Need help in preparing campaign

[Dutch_Wolf]

FIrst post here anyway:

Inspired by Wolves of Time (by William Horwood, The Sight, Fell, (and also Firebringer by David Clement-Davies) and works like Watership Down (by Richard Adams) I am planning to run a (short?) campaign featuring the PCs as a pack of wolves.

Short description of my idea:
The world floats somewhere in the void protected by the gods/spirits and the chosen from the nothingness that is the void. Legends tell that long ago humans almost succeeded in letting the void destroy the world and where banished from the world for that transgression. As the players get know the are to become the next pack of chosen wolves, portals open to a strange world and humans return to the world...

Currently my problem is that for the feeling I want in the game a combination of Path magic and realmbased magic seems to be great, but path magic does a lot with charms which per default do not work without opposable thumbs also I need some advice in creating new paths and rituals (preferably travel magic).

Also some general campaign advice is also welcome