This is the only pix I have right now and it is the 12 circuit unit w/GND buss.
there's ton's of wiring in the other console that is not complete yet.
To start with, paint the inside of the console. It will brighten everything up and make it look cleaner.
When you make your wire run's, kink the wire in nice 90deg turn's.
You will need a way to fasten down the wiring. Those stick on tab's that have double side tape on them that you can run a tye wrap thru work great in a piece of equipment that doesn't move. there not worth a damn in a boat. They will fall down.
Before you paint the inside of the console you may want to glue in some plywood to have a place to fasten thing's. Cut all the edge's at a 45deg angle to give the wood a finished look.
Here you can see a piece I've glued in. It's a piece of 3/4in to have plenty of meat for screw's.
There are clamp down's that you can screw down and then run a tye wrap thru. Also there is spiral wrap that help's manage wire's. You can barely see it bellow the terminal block