Guage Wiring
 

I have a fleet 387 with limited guages. I want to add all the missing guages. Before I start tearing my dash apart looking for wiring, is it true that all the wiring is there and the sensor on one end is missing and the guage on the other end is, also, missing? I'm going to need the dash panels with the holes cut out. On a related note, I'm looking for the dash panel for the radio, I have a VHF radio I want to install in the available slot below the radio. Thanks.