With longer wire to battery, SCC and inverter branching close to each other, the voltage drop/increase they create over length of wire can impact behavior. People have see one or the other shutting off or charge phase changing, I think. (maybe positive battery cable will be fairly short, can't tell.)
SCC and inverter connected might have been more of an issue for lead-acid than lithium? Ideally you have a fuse for catastrophic shorts right at the battery, then a busbar, then maybe a cable direct to inverter and a fuse or breaker to SCC.
But it may work OK as you have it.
Stacking ring terminals, I would put higher current battery against busbar, lower current SCC on top.
I would put battery and inverter adjacent, or even stacked. Rather than current going length of busbar.
I would put SCC terminal on opposite side of battery terminal from inverter, so it doesn't see voltage drop across busbar.
(If two battery cables or two inverter cables and one of the other, I put the single cable towards middle of busbar and the two on either side. So half current goes through busbar cross section.)