My first response... $,$$$,$$$.00 lots of capacity.
I don't know what size/model you are using in the + and - Battery Buss, We always suggest putting the high current leads on the same terminal and let the branch loads go on the other terminals. (example - Neg from the current shunt to a terminal that is shared with the chassis ground lead and shared with the Inverter neg)
Steve & Stacy,
Oliver, Ned and Ellie ( Yellow Lab, Red Lab, Border Collie/Boxer)
2015 Seneca 36FK
2007 Toyota FJC - on the trailer
2020 Coors Light - in the fridge