I pulled out my carpet today in the '81cdv and of course there are rot holes in my passenger side floor. Lots of rust and rot, but only on the passenger side. The drivers side looks brand new. I'm looking for some tips on how to cheaply and easily patch these. My idea was to grind out the rust areas and paint the bare edges left. Get thin sheet metal and pound it to shape. Then weld in the sheet metal. Does this sound right? Maybe some rtv in there too. 10 years ago I would have thrown the new carpet over the holes and not thought twice about it, but I'm trying to stop doing thing like that these days. If anybody can give me some tips or pointers it would be greatly appreciated.