On the Cape Fear River - the joint waters start at Memorial bridge in Wilmington. So anything north of the bridge you will need a freshwater fishing license. After Jan 1st - you will need one for the entire river either fresh or salt will work in joint waters above the bridge to the lock and dam, but only saltwater below the bridge) . It gets more complicated when it comes to the creeks that feed in to the river - there is a map on the WRC web site:
North Carolina Wildlife Resources Commission
On the Cape Fear River, the striper creel limit is 3 per person and min. size is 18 inches.
As to gear - We were using 7' fast action, medium light power spinning gear for casting and the same strength/action for trolling but those were conventional reels/rods. This is the same gear I use for trout and inshore drum fishing. 10 pound test mono or 15 pound test braid with a flourocarbon leader. That fat one was a BLAST on the light tackle.
Good luck - hope the weather holds out for ya. Don't worry about the cold as far as the bite goes (but do dress warm of course). The big thing to watch is the rain. I don't mind fishing in one or the other but I avoid fishing in cold & wet conditions - miserable.