Looks good to me
I would use a Marine circuit breaker instead of the fuse .
Parallel on the panels that way if one shaded the other still works.
Skip the solenoid and add a DC to DC charger.
One last thing would be a battery monitor so you know exactly what’s going in and coming out . O and...
I have 6 push to open slides and it’s a love hate situation. Great parked not so great driving . The Weight of the drawer itself opens it when turning corners. The back-and-forth motion unlocks the little latch that made into them . Have looking for some latches that I like to keep them closed...