Made some progress. The passenger side is almost complete. Working on the trunk area then the wheel well which has undercoating on it. Then on to the other side.
Had a few pieces to remove that were getting in the way:
Needed to go back over the firewall bracket and rocker edges:
Will go over the trunk area one more time, then focus on the other side. Then will go over one more time with some wax & grease remover on paper towels before stripping it down to bare metal.