Subframe connectors and stiffeningkit dxf_files ????

Hi all......

I wonder if anyone has dxf or dwg-files for lasercutting subframce connectiors and stiffening kit A-body 67-69 ???
I am about to tear down my car and i am about to make the chassie more stiff for trackracing.


:)
Big block dart dot com has DIY instructions. But not dxf or dwg files