Review this charge circuit with me

[Ryban]

We mostly inherited this electrical layout from our previous owner. We're in the process of modifying the layout, adding systems, including adding more solar, and upgrading to lithium batteries down the road (currently a total of 6 x 6V batteries split into a 12v 460AH house bank and 230AH start "bank").

Mostly the design is ok in my opinion, with two exceptions:

1. The two ACR (automatic charge relays) seem unnecessary, and confusing. Maybe the point was to isolate the shore-power charger from the other charge sources, or maybe it was to avoiding exceeding the current allowable of the ACRs.
2. The solar output selector switch seems unnecessary if the solar output is connected to an ACR anyway. The way it's currently wired, it looks like if you have "house" selected, then both banks are getting charged through ACR1. But if you have "START" selected, then only the start battery is being charged -- depending on what the other ACR is doing.

Open to other critiques and suggestions -- there are some fuses that are not shown in the diagram.

As we expand our solar system, we'll also be adding additional MPPT chargers for efficiency and redundancy.

I'm also waffling between the 3 position switch (1, 2, and 1+2) and going back to 3 on/off switches. The main advantage of the latter is that it gives us the ability to completely cut-off a battery bank.