Welcome to the notebook and thank you for your service to the country.
Have not fished the river in a few years but will share some things you might consider. This time of the year the stripers can be all the way up the river if the water is warmer coming out of the dam than the lower parts of the river, especially if there has been a shad kill on the lake and shad are coming through the turbines. White jigs and shad type swim baits would be good in this situation. Sounds like the boat you have would work for a float from the dam back to Marvel when turbines are running but the river is very shallow and if water is not flowing you may have to drag it over some gravel bars. If you check out Google Maps aerial photos it will give you an idea of the river channel.
From Gore landing down river the river is deeper once you pass down stream of the bridges. A lot of the striper fishing is done in this part of the river to the Arkansas river. Suspending trout colored jerk baits like the suspending rogue as well as swim baits like sassy shad and sweet swimmers work well at the right times. Some of the bait fishermen use trout or shad for the really large ones. Walleye are present also and my personal best was 7 lbs. caught on a trout colored rogue.
It has been a long time since I have fish this river and really do not have any current information but maybe it will help. Good luck and enjoy the trip.