So far this is about half restored. The face plate is done (looks new) and a few caps replaced
it works good and has 4 pots with 20 stereo inputs. It is set up with fader 1 having 7 switch able stereo inputs

and fader 2 having 3 stereo inputs (mic optional) fader 3 has 3 stereo/mono microphone inputs and fader 4 has 

7 switch able stereo line inputs. I have the manual and all the manuals for the plug ins.

As you can see below some one installed input connectors on the back lid.

Below you can see the 3 BA-71A Hi level isolation units, 2 BA-72A microphone preamps (both sound clean)

and the 2 model BA-73E program amps on the far right is the BA-78B cue amp