The front seats leather on my 98 Navigator is falling apart. The backs are fine. They look almost identical. So, if I just pick up a pair of back seats how much is the same that I can transfer to the fronts (even the foam is falling apart on the front ones)? Are the upright parts on the back seats the same other than the armrest mounts (minus any lumbar supports of course)? How about the lower seat cushions? I want to be prepared before taking the seats out of the truck to work on them, and have some kind of idea how long it will take me to fix them. new seatcovers are going for almost $500 per front chair; a pair of back seat captains chairs I can fine on ebay for half that. Has anyone tried this?