@JGizmo Any updates? I got to wondering about exhaust for your car. Are you gonna make headers, or will maybe some of the LS swap manifolds on the market work? If whatever you do gets too close to the steering column, you can cut the tube off close to the firewall and gain a little room there in that cramped up space. There is a thread here somewhere about how to install a bearing in the end of the column housing for the steering shaft.
When you have to upgrade the rearend, you can put a Ford 8.8 out of an Exploder in it pretty cheap, and most of them are positracs. Then you can call the car "Big 3" - Chrysler body, GM power, Ford axle! :)