Hello Pete,
Sounds like a fantastic trip. We did the same last year, and it brought up lots of fantastic memories. (see cape york long with photo's in the Queensland trip report section). It was Rene, from the Cairns Land Rover Dealership, who found my headlight short was a blown main fuse under the drivers seat. He stayed after closing, to fix it for me so I had lights for the night.
Still the best holiday I have ever had.

Great to hear your report!
Cheers,
Ken