Unfortunately, the remoteness of the area dictates that you must stay at one of the resorts that dot the head of the inlet. There are almost no services available to support those who venture to the Inlet on their own. A half dozen lodges fish the waters of Rivers Inlet. Most are located near the head of the inlet where the fishing is best. Prime time for trophy fish is late July through August.
Most lodges offer three day of four day trips.
To give yourself the best possible shot at a trophy book a four-day trip. If time and money allow, come for seven days. Most lodges offer your choice of guided or unguided packages. I recommend using a guide for the first day or two. After that, you should have learned the hot spots and techniques well enough to try it on your own.