Assembling a 24-volt system using LiFePO4 batteries without VE.Can connection

Hello, I have a task to create a system from 6 LiFePO4 12-volt batteries from a third-party manufacturer that do not have a VE.Can interface, forming a 24-volt system. I have a question about whether it is necessary and how to balance these batteries with each other (in pairs).

I cannot use the standard Lynx Smart BMS because there is no VE.Can connection. I am considering using the Lynx Shunt VE.Can instead to monitor capacity and voltage on the Cerbo GX screen. To disconnect the system, I plan to use a power contactor, but the question arises: how to disconnect it in case of a battery or system failure?

Please let me know if it is possible to assemble such a system.