moonies gauge cluster rework

[dusterbd13]

im about to finish prepping all my dash parts for my 89. ive got a full instrumentation cluster to replace my work truck cluster. still have to get the odometer right, but thats another issue.

anyway, i want to make sure that this cluster is good to go before install. visual inspection of the circuit board looked good, all the dials move freely, etc.

questions:
1. how do i replace the light bulbs? looks like i have to pull all the individual aguges to do this, but im hoping theres an easier way.
2. what bulbs do i need?
3. any maintenance, etc that i should do while im in there? cleaning, calibrating, etc.
4. will my idiot light sending units work with the gauges?

thanks
Michael