Just a tought, use a trailer conector like this:
And put one in each size on the rectangles zone of the picture
From there I can run all the wires to the roof rack, 1 for the spot led set, 1 por the diffuse set, 1 for the rear work light and so...
These wires will end or start under the hood on a fuse and relay box, probably I will get some spare wires but could be useful in the future.
Your feedback is welcomed!