"Home-Brewed" Battery + and - Terminal Blocks Finished Photos Added

I can fully relate to the extra wiring that usually find its way into a car, my car is no different, but imo your design also just adds a large area for an accidental short to happen.
Although I should need to follow my own advice here myself, but I would rather run a seperate thicker gauge wire from the positive battery-post to a fused power-distribution block mounted on the inner fender or under the dash somewhere.

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