That's what I've always done and I see no reason to change really. It depends on your loads, it may make sense to have non-critical stuff hanging off the load output but leave the fridge directly on the batteries.Previously my fuse box/load was hooked directly to my batteries.
Generally all charging sources can be connected together, however I believe MPPT regulators have trouble when their output is connected to another charger, I've not got one so can't verify but that's the goss on various forums. You have a PWM regulator so there are no issues that I'm aware of.Does it matter if the solar charge and alternator charge are hooked to the same battery terminals?
I know many people suggest this and it sort of sounds "right", I do hear more about this with Lithium batteries, not so much with lead acid. I've never bothered and connected wires to wherever was mechanically the best. With DC if the wires are large enough and the connections good (all relative to the currents involved) then one end of a wire is the same as another in this context. That said battery charging is a black art that I'm not all that privy to, I prefer electronics that doesn't involve chemistry.so I'm attaching my loads from the + and - at opposite ends of the series. I'm thinking that is right...charge from the truck plug will go to will go to the + and - at opposite ends of the series.