Why not just buy some reels and rewire it yourself? It would be cheaper and last longer.
Or is enough broken you cannot trace the wires anymore?
Well, it is helpful to have more than one color in general, just incase one needs to trace and fix a broken wire in the future.I have a Mitsubishi (Sotah is same) and In my eyes the wiring is so simple that there is no need to go spendy and get a factory one.
Separate the looms and replace one by one point to point and U should be fine.
If all else fails go primitive and creative just fuse or otherwise protect all circuits
Heck 20 ft of 16 gauge wire should do the job. (heavier for starter)