As promised, here's the images of where to access the strips for the cluster. I kept the fuel/engine temp/oil pressure dials and the tach from my car but the speedo from a 500SEL since my car has a differential swap. I also have the outside temperature display installed in mine.
In order to access the strip, just carefully peel back the bottom fabric. I used a hobby knife and just lightly cut the adhesive.
I also included a shot of my cluster (the speedo needle needs to be repainted):
