Before you get started, talk to your insurance company. The issue comes up if you modify stock parts (GM, Toyota, Jeep etc.) especially for braking and steering. A common one is bump-steer and the need for a different size or shape pitman arm. The best bad example I can think of is heating and bending a forged pitman arm. You may be liable if your modification fails and someone is harmed.
Yeah that’s one of my biggest concerns with the project. Right now it’s on historic insurance, but I plan to switch it to normal so I’m free to drive whenever. After more research, I’m not sure whether I even want a straight six anymore. To build a 250 or 292 to have similar power to a small block would cost much more money, and that’s the opposite of what I hope for this project to be. I’m still planning a 5 speed 4wd, but not sure whether to retain a six or go for the cheaper small block. Granted, small blocks have their own problems with fitting in next to the steering column and having room for a fan. Any input?