That looks like it was properly made, not a bad deal honestly all things considered. Good kicker, a hull that is probably a lot stouter than any grizzly or roughneck, good fish finder, good power plant with trim, all finished out pretty well. I don't get whats odd about the dimensions 19ft long is a good size, 8 deg dead rise would draft shallow, help vent away air to prevent cavitation, and help cut through chop some. Someone really spent a lot of time coming up with this and building it. Being 3/16 bottom and built out west I'm guessing it has some good longitudinal bracing and horizontal vs most typical jon boats are just horizontal. Wonder what would make the seller go through all the effort designing/building that and decide to get rid of it.