We have a full kit from Plugin Supply for sale - includes all controllers, cables, charger, battery box. Just removed from Prius 2nd Gen. Needs new batteries. The original batteries - some is bad, some holds 30Ah. Original capacity 40Ah. Included: - aluminum box + Plexiglas cover - 76 BMS boards - connecting bars and screws - contactors - rear and front controllers - OBD connector - other small controller - cables and connectors - charger $2700 for all parts + shipping.
It looks like it includes a ECM spoof board. It is the small PCB with two white wires and two black wires. Allowing the Prius to go up to highway speeds in EV mode. Possibly why the battery pack is RS.
I don't know the name of this board, but looks like interrupting the CAN interface to some modules. It was AZ car - that could be worst than driving on highway.