Tommy, these items should do it. The Victron monitor is about $200, but the one here will be good for monitoring your system. Just no Bluetooth for monitoring on your smart phone. The bus bars will allow you to make all the connections you have on the battery terminals now and just run a Positive and Negative cable out from the bus bars in the CTC to the batteries. It will simplify and clean up the wiring.
https://www.amazon.com/dp/B07KVW7F5X/?c ... _lig_dp_it
https://www.amazon.com/gp/product/B07FG ... SGK0&psc=1