Started out with a similar but smaller project. The rear portion of the drivers seat was loose due to a missing bolt on the right rear and a bolt on the rail on the left side of the seat. After reading a lot of relevant threads on this site, I felt comfortable tackling this small project one Saturday afternoon (too cold to ride with the top down even in South Georgia). I got the seat out after an hour of fighting and discovered numerous gift (similar to the posted picture) left to me by previous owner. I then decided, armed not only with the knowledge of how to remove a seat, but with the experience of one under my belt, to do the other and found more treasure under the passenger side. Additionally, I found two extremely soiled sections of carpet under the seats so I decided to remove and shampoo those sections. Much to my surprise, I got them fairly clean, and while they were drying decided I should remove and shampoo the front sections as well. Those came clean as well, but now I noticed that all of the visible carpet in the car has faded from the sun and the true color was the darker, under seat color of the original dirty carpet. One of my friends who owns an interior auto upholstery shop recommended dying the carpet as it is in good shape, but I may be leaning toward replacing it with all new carpet. So while I decide, I ordered the dynamat extreme as many have recommended to use under the carpet in either case. While that is on order, I also purchased a loud pink pool noodle to bolster the seats as recommended by many. I hope to actually begin to put the car back together as soon as I can come to a decision about the carpet, but this simple afternoon project has ballooned into something much bigger. I wish you guys had warned me. Of course, this started out as a small response to the original post....
I'll go back to looking at pictures in "Pagoda Style" to keep me inspired.
James