The binnacle is screwed to the dash pad (screws visible in photo below) and then held to the car with two long bolts (blue arrows) and 10mm nuts through the metal dash, reachable from behind, as well as two screws (yellow arrows) through the bottom of the metal dash floor and into the "ears" of the binnacle. The holes in the dash are slotted, allowing upward movement if you loosen the nuts and also remove the screws. I think you'd have to pop a couple of the dash pad clips (either side of the defroster vents) to get it to move up much but I am always scared messing with the dash pad and vents. Careful of the ends. All very brittle.
The wood panel is held in with two 10mm nuts on long studs with spacers that go through tabs in the metal dash (green arrows), reachable in back. Ignore my custom LCD display in place of tach. Two electrical connectors (orange arrows, 9 and 6 pin), and the speedo and odo cables. This is actually easy to remove once the binnacle is out of the way.
Removing a single instrument, whether on the bench or in the car, is two knurled nuts that need to be loosened (they have 8mm hex on end if tight) then the gauge rotates slightly to release tabs from under nuts. There are cardboard circular gaskets around each gauge that tend to stick and break. I 3d printed replacements in flexible clear TPU. The clock is relatively easy to remove in situ as it is easiest to reach and only has power, ground and one bulb. The speedo a bit harder, with two cables and three bulbs and steering column in the way. The fuel/temp very difficult with all the wiring. and bulbs. All bulb sockets just pull out with friction fit.
Good luck.