Test locations BEFORE running cable and mounting the cam. That is the only way you can answer these questions you have about lighting and positioning. Use a test rig as described in the Cliff Notes.
As far as mounting cams near lights, in general, the cam should not shoot across the light. So it is better to mount the cam below the light than above the light if the cam is pointing down. Likewise, mount the cam to the left of the light if it is pointing left, and mount it to the right of the light if it is pointing right. But still test it first before mounting and running cable.
As far as mounting cams near lights, in general, the cam should not shoot across the light. So it is better to mount the cam below the light than above the light if the cam is pointing down. Likewise, mount the cam to the left of the light if it is pointing left, and mount it to the right of the light if it is pointing right. But still test it first before mounting and running cable.