That is an enormous undertaking. You basically would be building it like they build Pro Stock chassis. As someone said, you would have to build a separate tube chassis and install it under the body of the car you want to use. The idea of using GTA stuff is not a real slick idea. Even though the front subframe bolts on, the GTA front supsension requires the frame rails to locate the steering box and idler arms. The rails are part of the GTA unibody. The rear frame rails are also part of the unibody and do not unbolt. If you really want to under take something like this, I would start getting the Chris Alston catalog or the Art Morrison and see if they can build you a frame. Another option is using C4 Corvette suspension pieces since they unbolt as complete units.