[Dave at Pelican Parts]

Very little or some structural problems, depending on how much was cut and where. I figure it's best to have reasonably intact sheetmetal, though.

Yes, you can weld in a flat plate if the area to be covered is flat. You might lose a very little strength over the original formed piece (it wasn't flat, it had pressed-in ribs for a little more strength) or maybe none at all. Again, depends on exactly where and how much was taken out.

You can also look around on the classifieds (here, at 914club.com, and so on) for someone who is parting out a car. Have them cut out a trunk floor for you; should be reasonably cheap... It's at least worth looking.

--DD

--DD