Edit to clarify that I'm not keeping the GoSwiss motor. Any new battery would be just for the lights and brakes.

I bought a 2014 HP Velotechnik Scorpion FS26+ with a GoSwiss motor. My plan was to replace the defunct hub motor with a regular wheel and call it good. I've since discovered that the trike has internal wiring for front and back lights as well as Tektro e-twin hydraulic front disc brakes. All systems were designed to plug into a battery that I don't have and which is no longer made. Is it possible to re-harness the wires to plug into a different battery?