I did this conversion to add the side bolster adjustment. i think thats what it was called. any questions just ask. excuse the shitty 2mp cam
donor seat obviously got soaked (on the left)
finished. thats my oldest boy Ethan
Wow, not bad 
Looks good. How hard and how long was it to actually swap the stuff over? I have a mint 92 LS interior in my 90 GS (same colours as yours too), but I miss having the side bolster. I was thinking about doing what you did, but have been a bit reluctant because I wasn’t sure what the PITA factor was going to be.
took me maybe 40min. its not too dificult. maybe 2 outta 5. it just takes patience getting the cover off. 1 thing to note is the hooks and springs that hold the cover against the foam. and when you look at the seat the 2 lines that go accross on the part that touches your back, there is a bar in each one that is glued in place. just slice with a razor so you dont rip the foam. lol. good luck