It's very straight forward. Step by step directions are in RAVE. Unless your front cover is cracked or damaged you can purchase the oil pump gears separately and install them in your current cover. Be sure to order a new front seal while you are at it.
Dead easy, remove viscous fan, remove belt, unplug cam sensor, undo crank pulley bolt, remove crank pulley ( make sure woodruff key stays there ) hose from water pump, various bolts holding the cover, and it’s off, a extremely easy job on these engines, might be a few other bolts and brackets, can’t say as you don’t say if gems or Thor, it’s pretty self explanatory once you start.