Dad did a bit of work on the firewall for the electrical penetrations - this is the RHS (B battery) location.
I was still on the wiring - slow progress, lots of inter-dependancies. I'm trying to keep the audio cables, strobe lines, main power and antenna lines seperate as much as possible - not a simple problem. This is also an area where other website / builders are of limited value and there isn't that much information available.