i just washed the front seats from ted, the parts car. as i mentioned, though only the driver seat wing had a few small holes, all were filthy, stained, and both bottoms were mouldy. i washed them like crazy last night using 'stain away' pre-treatment, lots of soap, a bit of bleach, hot wash water, and did it five times. the result was remarkable. they are not perfect but i'd rate them at about 85%, which is especially remarkable considering how they were before.
before (and before the mould)

after
bottom #1

bottom #2

back #1 and head rests

all

the other back is being mended by my friend and thus absent from the shots. i'll post the final pics once the seats are all assembled. i think i've convinced myself to wash the seats in ron this spring/summer.