This thread has some wiring diagrams in it if you strike out on a full harness. Thread 'Gauge wiring diagram HJ61' Gauge wiring diagram HJ61 - https://forum.ih8mud.com/threads/gauge-wiring-diagram-hj61.1056684/
And there's some 60 diagrams if you scroll way down on here.
Toyota were pretty good about using the same colours across vehicles. It mostly
makes sense once you get your head around it.
Except for the ground switching headlight s***. That's ****ing brain melting.
I have a stock ct26 but it's kinda my spare in case something stupid happens. Plus it'll be missing the exhaust dump because it's on my new one, so it wouldn't really help you 100% anyway.

