I started with a 110v Mig welder and quickly learned I needed a better machine. This is my neighbor's who is helping me. We can mig weld with 250v or spot weld with a timer. Works well for my needs.
My bracing was in a square and tied into the rocker where I had removed the quarter panel. The welding is not so good but this was using my 110v welder before I learned how to use it.
this is how I tied the bracing into the rocker for the side that had no quarter panel.
this is the brace that needed modification. You can see the rib on the floor tapers to flat, but the Aftermarket brace has the notch for the rib. Maybe 68's are different, but my 69 original floor had a tapered rib and I had to cut the rib and flatten it out and reweld the brace flat.
this section I decided not to remove the brace as it was in perfect condition. I cut back and welded the seam along the rocker. Plug welded the brace back to the floor every 2 inches or so. Same as original. On the driver side I removed the brace to address some rot on the floor between the brace and the rocker, then re-welded the cut brace back on... good as new.
Here the floor is in along with all the floor bracing except the seat pans. I then sent the car out for media blasting and an epoxy primer 3M's DP90. That stuff is as tuff as nails. I added the seat pans afterwords since that was the easy part of the process. There will be some sanding and also a few spots of filler (Quantum 1) next along with seam sealer.
My wheel well inners had a small section of rot between the inner and the rear seat back weldment. Each of these are now being cut out and replaced with new material. There was originally some foam in between these parts that soaked up moisture and rotted the inner well. Again a small area but needed to be addressed.
Its taken me a long time as I only work on the car once per week for about 3 hours. It's more work than I signed up for, but thats what you will see the more to dive into the project.