After looking at the picture I can see why they had to pull the grill. The grill hangs out over the bumper partially covering the winch compartment.
With the winch installed can you still get the lid back on the winch compartment?
When I installed the 12.5SR in my bumper I got rid of the plastic solenoid housing and bolted the relays and solenoid directly to the inside wall of the winch compartment.
Remote solenoid, relay and remote plug location
I used the side your winch electronic pack is located to bolt in the relays and fuses for the driving and fog lights.
I also rigged up a fairlead cover to help keep road splash off the synthetic rope.
If I had it to do over again I would probably get 2 more light mounts from Kenny and mount all three lights up high. Having the two side lights that low to the bumper makes it real tight to get the winch compartment lid off and on.