1st time anything solar.

[offthetop04]

Equipment
100% off grid will never connect to grid.
I have 2EG4 6500 in split phase with the EG4 load center.
Installed in a 20' shipping container that's grounded to ground rod.
Feeding 100amp Breaker panel.
I have #4 welders cable 600v for inverter AC output to 100amp breaker box.
I have 6awg stranded white neutral from load center to 100amp breaker box.
I have 6awg stranded green ground from load center to 100amp breaker box.
GROUNDING/Neutral
I have stranded 6awg from grounding rod to load center ground bar.
I have stranded 6awg from grounding rod to breaker panel under breaker in middle of the panel.
Future loads:
50 amp for rv
Few power outlets.

Questions
Can I use #4 stranded 600v welders cable for AC output from inverter load center to AC input of main breaker 100amp? If no I have #2 welders cable 600v would that work?
EG4 has that jumper lug so i fed 2 #4 stranded welders cables into it "black and red" these go to the 100amp breaker box, one on each side of the breaker. Correct?
Grounding the load center and the 100amp breaker box to ground rod. correct?
Bonding screw is installed into the 100amp breaker box?
Please see photos below.
Thank you

 

[hwy17]

I'm not sure the AC panel and breakers are rated to accept fine strand wire is the problem.

 

[offthetop04]

I'm not sure the AC panel and breakers are rated to accept fine strand wire is the problem.

Ok that was my concern, ill go grab some new 4awg from town. thank you