My R32 Gts-T Issue In English, Please

[Traah221]

Sorry, for the seemingly rude title, but it is an eye-catcher eh? So, my conundrum is one that has been covered countless times it seems, but none of the guides or tips seem to fit me whatsoever, so I will need some resident expert's help in discovering exactly what it is I have. My mechanical knowledge is general across all platforms, every engine type, not rudimentary, but certainly not Skyline-specific, so forgive my seemingly novice outlook on this issue.

Now, the issue at hand stems from me cracking a head out on an excursion, and with no option in sight, limping the car back home. Obviously, this was less than helpful for the old RB20DET, so I decided to nix it in favor of the bigger, better RB25DET, which is now sitting nice and pretty mechanically in the bay of my car. The issue here lies in getting the brains of the car to work, ie the fabrication of the wiring harness for the R33 engine in the R32 Chassis. There are numerous guides on the swap, but none that delve deeply into the wiring side, and absolutely none that seem to match the physical wires I have in front of me. If I were to post pictures, could you identify for me what series harness I have, and what the best approach to making them work would be? I am in possession of both a stock RB20 and RB25 harness and ECU, so any combination is possible, i just need a resident expert to tell me what wire to chop and swap to get my daily driver back.

Much appreciated!