I have a Rubicon 10A that has the same bumper as yours.
When I purchased mine there were no readily available options for winch mounts so I fabricated my own. I drew up the plans using 1/4" steel and had it laser cut, welded and powder coated at work. I installed a Warn PowerPlant on mine. I took some pictures the other day but realized during this post that I have to wait to download them as camera cable is attached to my home computer.
I mounted it between my frame rails. I did a custom mount for the fairing as the Powerplant has an off-center cable spool and the bumper is precut for a centered winch. I also had a vacuum pump bracket fabricated that attached to my winch mount that did not require the pump to be relocated.
KG6SLC aka Eugene