Although the mats looked better they still were not that black. I later fixed that with shoe polish.
With the mats repaired they were cleaned with a bunch of different cleaners followed up by foaming tire cleaner. Carpet padding was put down to cover the floor, various cuts were put in to follow the contours.
Initially the flooring wasn't laying right, in looking at it I realized there should be no padding under the seat mountings. That cut away the mats fit fine.
With the mats in the kick panels could follow.