Yeah, right. Somewhat daunting if you have never done it before.
Remove under dash panels, then working completely blind, snake your hand up behind the dash and try and feel the knurled knobs, and remove. Undo and pull back the speedo cable.
Then gently pull the cluster out from the front of the dash, but only a little way so you can get your hand behind to remove the round multi wire plug (fits on the ring of connectors, right side of my pic). From memory, I believe there's another single wire to remove (tach?). Installation is reverse, and good luck like trying to get the speedo cable re-installed, it's a 10 second affair or 10 minutes.