Thanks guys; a few replies...
RoyB: I like your idea of fitting conduit so you can feed through extra wires as and when you need them. Plus I like the map you found of the mains voltages world-wide - best avoid the stripy places - easy to make a dangerous mistake with the voltage there.
bigfootford: Chet suggested I email you about my wiring color confusion Jim, but I managed to sort it out after all without disturbing you. You make a very good point about chafing.
Sleepy: When it comes to methodically breaking down a problem and solving it logically I defer to your experience since I know some of the things you have worked on and how much effort you go to to get them right where I might just give up or take a short cut.
Reddog1: Good reminder to be aware of the potential of wires to get hot. The wires that carry significant current and have a reasonably high duty cycle in my install would be for the compressor fridge. They are bundled over a short length, but are also on the outside of the bundle.
AKSuperDually: Wow, that is some seriously neat wiring in your camper - only joking, I know it is the bulkhead of an aircraft, but gives an idea of the direction I would prefer to go in. When I did my apprenticeship I had to learn to lace cables for equipment control panels. I learned to make them neat and the importance of not making them too short :S. My wiring would be even neater were it not for the service loops I like to put in them so I can retract the control panel or perform other forms of maintenance.
cewillis: Damn, I thought I had wired in every possible option - but now you mention the popcorn maker :(
Steve.
