Dan,
the floors had been patched from the under side, leaving the old rusty metal on top and the kick panels were toast. I made all new panels with 18ga sheet metal and cut out the old leaving a boarder to attach to. Couldn't afford new panels at about $100.00 each side shipped, not including the kick panels. I bought the 4'x8'sheet of 18 ga for $48.00 and still have about a 1/2 left of the sheet left. The floor panels are 2 pieces each side. Formed with some angle iron, vicegrips, vice and a hammer!
glued in place with body panel adhesive and a few rivets for extra measure. I double sealed it with a water/freeze resistat calk and then the bedliner. Hope I get no leaks! I secon qt. will finish the bottom and hopefully leave enough for a second coat on top, rolled on for a better finish look. Not that it really matters as it will have carpet over it.
