Hardwired the Reliable 12v 3000w pure sine wave inverter, and searching for a good ground

The system continues to grow, running wires, adding more fuses, and busting up lava for a suitable ground
Entire system so far:
Chins 12v 300ah lifepo4:amzn.to/3DBKjqu
Reliable 12v3000watt pure sine wave inverter:amzn.to/3oJzr3A
Victron 12v 30amp smart charger:amzn.to/30LXzuq
Newpowa 12v 100watt monocrystalline solar panels:amzn.to/3HBqXEj
Epever 40a controller:amzn.to/30M0uTU
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