My dad and I are thinking of heading up to the Brooks Range toward the end of August to pursue sheep and caribou for the freezer. Anybody have any relatively current tips of where to go either off the haul road itself or for a flight that will cost @$1000 or less for both of us?

We are 40+year Alaskans, in reasonable condition, bowhunting, (at least for the first week) and have each killed a number of sheep and caribou, but haven't hunted the Brooks Range for several years. Any up to date tips would be greatly appreciated.