Electrical 1989 GT Electrical update questions

I purchased an 89 GT right when Covid began had it tuned 347 stroked. Its a solid platform and far from perfect but Ive got some cash and minimal electrical experience so for give me for basic dumb questions.

Ive got a 351 and gen 4 aluminum ls 5.3 block sitting in my shop that can potentially be rebuilt easily. Until then I would like to inquire about getting some aftermarket goodies to prepare for the future.

What products should I be searching for to do the following..

Secondary fuse block that handles gauges, radiator fan controls, fuel pump, fog lights etc. (other suggestions welcome here)

More or less the easiest way possible to add accessories and run wires seamlessly clean and efficient.

Thoughts?

Thanks for the reply. @KRUISR. I would like a secondary fuse block. Its hard for me to describe but on my motorcycle I added a fuse block that connect directly to the battery so I can add accessories without all the clutter connecting to the battery. (multiple grounds and power wires)

End of the day I want to manually control fuel pump, fans ,etc on a switch. Im not eleictrical savvy at all and old machines are a huge learning curve for me. Is this a possibility or am I way off base here. I have a fan already installed on the radiator however It isnt functioning for some reason (previous owner did a hack job). I would like dual fans for added protection and today the temps increase at idle becuase the fan isnt drawing any air in. When Im moving temps go way down. Again sorry for the lack of intelligence on my part. Im learning.

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