Have you ever wanted to make your own boat, cheap and fast? well now you can. so this is what i’ve been working on for the last couple of weeks. this is a. Aluminum jet boat design, aluminum jet boat construction, aluminum inboard jet boat design, information on rogue jet design and constuction. Sjx jet boats inc. is located in orofino, idaho. right in the heart and soul of shallow water proving grounds, as well as the steelhead fishing capital of the world..