Put your boots on and get your hand ready to knock on some doors. 163 is a good unit but the elk are hard to find and often and almost always on private ground. I hear the tree farm at Boise is good not sure how you would get on there but people have killed some good bulls there. I have seen elk a mile from Touchet and a pretty good little herd out by LOMO last year. your going to have to work for that tag but it could be a good one. You live close so I would get in the car and start driving around and asking permission.
As far as the Dayton tag goes it's a huge unit so that again will be just getting up there and learning the land. Lots of NF up there.