Underbelly, reuse or replace?

Thanks Stripit for the reply. I have done as you suggest when I was running wire for my solar setup. I should also note that the back has ripped (the 50A wire is resting on the underbelly cover), and the gorilla tape isn't holding anymore. So I'm looking at this as an opportunity to fix that, the dump valves, and seal up the holes in the floor where wire and pipes are running through to help keep the mice out.

Marc