76 cobra II restoration

Hi I'm new to the forum and the mustang II so bear with me, now on to the project. I just got a 76 cobra II and have it mostly stripped down for the rebuild. It has a 302 motor and a 4 speed all I know about the motor is that someone has put 3500.00 bucks into it and will post info as I figure it out. I plan on posting lots of pics as I go there is alot to do on this car. I am by no way a body man and could use some input. I do have some fab experience and will be doing a front sub frame rebuild with sub-frame connectors. I have also come a cross some great ideas on this site and will be using some of them so I thank them and give them credit now. So here is what I have to start with.

Yep the body doesnt have any holes its the subframes in the front and floor pans. The floor pans had been patched but not to my standards they just put large piece over the hole and left all the rust under so Im going to get floor pans and cut everything out. As far as the subframes go Im going with 2 1/2 sq tubing up past where the radius arm mounting bracket bolts on and back about 30"s and then to the rear spring mount to try everything in see pic yellow line would be the sq tube hopefully straighter than in pic.