I hadn't (as most of us know when first starting this) expected surprises when removing items but when I removed the carpet, I saw a lot of minor surface rust, most likely from years of leaking t-tops (that probably explained the missing headliner). I ground down the rust, then used a rust converter/primer. The only spot not touched, was the drivers side passenger floor which had a hole in it which appeared, from underneath, to have been caused by a puncture from running something over and never being repaired.