Floor replacement tips/tricks for a factory install

[Rg500gamma]

I've decided to go the complete floor/bracket/mounts installed route.
I was thinking of drilling all the r cab spot welds after I welded in interior cross bracing for the alignment
Pull the cab and roll it on its back(r window) and proceed to remove the floor that way. Thoughts, good and bad welcome and or other methods. I want to stay away from patches over here then over there etc, etc
You guys get it. Problem areas to address with additional drain holes and the preferred coating underneath. Paint or Rust Encapsulator ? Intended for as close to a stocker is the goal. No mudding. Nice driving head turner