Yes
-1" under the door, spot welded every 4" equal with the stock metal and a full bead full length that connects the stock metal, 1" and the 2x6
-Angle iron on the lower inside edge spot welded every 6" and then 1" stitch welds to the floor pan. Welded to the 2x6 full length.
-Instead of doing supports to the inner channel/"frame rail" I did supports on both ends, in the A pillar and the C pillar/dog legs. As you cannot slide along a rock with those supports going to the inner channel. I didn't get any pics of this step.
You are going to want the 1" under the door because you cannot get good penetration into the 2x6 without it. 18 guage sheet metal into 3/16 or 1/4 doesn't work well.