Sorry i do not have a pic before the 1st pc. of metal went on.
The 1st piece of metal is cold rolled steel and the gauge is 0.050" for the rocker pannel ext.( I work in a metal stamping plant, steel very easy to find)
I took a flat piece of steel and hand formed it to match the door sill ( alot of hammering
) and then butt welding it on the left hand side, aslo the top flange where the rubber seal goes i had to plug weld it.
Then took 0.030" coated steel and form the curves around the door hinges, had to use small pieces to form the rad's and weld them toether.
Grind then weld, Grind then weld, Grind then weld, Grind then weld.
I aslo had to do the B-post
Some day when i'm done all the metal work I will seam seal the hole car inside and out.
Good luck