I see the problem... you buy your fuel at Coles!
To answer your question, the FG84 is not available as an automatic, so yes, that neutral switch is definitely on a manual.
Sorry, but it is next to impossible to determine anything from those photos, other than possibly the colour, which looks like they are light green.
As it turns out... the wires for the neutral switch are also light green.
You could try connecting them together, to see if your truck starts.
If you are concerned about potentially blowing something up, if they are not actually the neutral switch wires, use a jumper wire with a 1A fuse in it.
The neutral switch is just a continuity switch. If it is open circuit the truck is not meant to start.