When I did the job with Achim a couple of years ago, we removed the left, right and center carpet pieces as one unit. They had not been out before, so perhaps it was easier than it would be for a car that has newer pieces that were glued in more recently.
I've got pix of the job online. Drop me an e-mail and I'll send you a link.
Douglas Kim
New York, NY
280 SL #016220