Inns with rooms should have a room that can be rented where should the group go there and rest, they'd get the effect of camp or other regenerative type skill. It would need to be an existing room, so that it wouldn't be away from the normal PK possibilites. Maybe make it rentable by day, so you could rent a room for say: 10 days, and continually return there to rest between fighting/ranking spells, etc.