I have a suggestion for you that will save you major headaches in the future.
Since you have removed a lot of panels all at the same time, you may have some issues with fitting new panels precisely as you go.
When you replace each new panel, don't weld them in. Use small self tapping screws to hold them in place.
This will make it so much easier to reposition panels should you run into door fitment issues as you progress.
