Eric- As far as the door seals, you can find that out by going to either DMC Houston (www.delorean.com) or PJ Grady's (www.pjgrady.com) web sites. The squeaks, well, I'd say that just about normal for any car almost 20 years old. The metal plates you saw on the bottom? One covers the gas tank which is nothing more than hard plastic, and there are two on the sides of the engine that cover fuel lines and cooling lines I believe. Scott