Here is the floor pan under the back seat. You can see the holes where it rusted through. The surrounding metal is pretty solid, those holes were punched out by me as I scraped. I'll probably have to cut the section out and install a patch though.
Here is a picture of the back of the interior with the seats, carpet, console, & pads removed... pretty rusty down there. Yeuck! Scraping at it my screwdriver went through a couple times.
Yep, that's a complete extra XR-7 dash in the trunk. Well... you can only see part of it in this pic,