Hi Martin...welcome to the Forum!
It sounds like something like an ABS wheel sensor that could be bringing the warning light on (believe it is the wheel bearing type of sensor and if the hub nut/bolt isn't tightened up correctly, this can affect the sensor).
As for the lighting faults, not sure exactly but may have been disconnected in the process of repair and maybe not replaced correctly...but the headlamp sounds like a ballast fault.
Let us know how you get on with it
Regards Trevor