Just speaking from my experience with replacing floor pans make sure you inspect it really well. I found a small hole underneath the car about the size of my pinky I thought that's no big deal when I pulled the seats and insulation out I found I had a much bigger problem than I thought it was pretty much rotted from the rear seat to the firewall on the passenger side. Even the places that wasnt rusted thru has enough surface rust and pitting that I didnt have anything to weld too.
