Lund Boat Seats Will This Wiring Set Up Work On My Boat. No Previous Wiring Present?

Will this wiring set up work on my boat. No previous wiring present? - lund boat seats

I have a 14-foot boat V-Lund fishing ground. Use for fishing and other things. It is a very simple boat wiring without precedent. Here are the configuration, which I think is doing too ..

Batteries in advance of my seat in one. 12VS I will parallel the two together, then run 4 AWG to stern. The positive side is with 20 amp fuse. I run into these two ground rods, one for the positive and the other for the negative side.
All components of my time I want to run through the bars on the ground. I put a traction motor, lighting, and a CD player. And perhaps a lighter.

Should I be somewhat concerned, or is it a good job? If you do not want to run a backup or a backup paneld bars country?

Any help would be great. Wiring is expensive, does not want to ruin anyway. Thank you.