Here's the ideal boat to go fishing in. A used Vietnam era river boat, called a PBR (Patrol Boat River), built by Uniflite.
Mount the 50 cal machine gun on the bow and you can keep lurkers from following you around. With a pair of original Jimmy 6-71 turbo aftercooled diesels it should do better than 30 knots. Can you see coming down the Columbia around the bend at Sauvie Island? "Avast yee ragboats!!!" A perfect boat to fly the Salty Dog Burgee on.