13MWZ

Howdy, so I was reading the post LFD2037 started about washing the seats and it raised a couple questions in my lil ol noggin.

1. Is the cover on the center seat (40-20-40) removable to wash?
2. Where (besides Dodge..they wanted 200+ for one) can I get a new foam insert for the lower drivers side seat? Mine is held together with duct tape right now after a rip over the left side frame rail.
3. I have been thinking of changing my seats to leather. I work in dusty conditions and constantly have dust in my seats...gets annoying when I clean it all up and dust flies out when ever somebody sits on it...no matter how much I vaccume them. So what are some options for getting leather covers to replace the factory cloth?
4. If I did convert to leather, what could I do about the back seat? How does it come out of the truck?
5. Since it seems the 06 seats are junk, if I was able to find complete seats (front and back) from a 3rd gen, would they bolt right in? Any particular years that would be a direct swap?