I would say everything you have picked is a great choice! I run all RK parts on my Jeep, so that is what I would recommend, but Poly makes great stuff too. If you can wait a week or so, I believe someone local will have a Poly steering kit for sale.
Do you have a rear adjustable track bar and relocation bracket?
07 X - Flame Red - 6 Speed - 5.13s - 37x12.50 MTR/Ks - ProComp 7069s 17x9
RK 3.5" X-Factor LA - WTOR Hydro Assist - Rubicon Axles F&R - Trussed & HD Brackets
PSC Flares, OR-Fab Front Bumper, Genright Rear Bumper, Poly Sliders w/ PSC Armor