do not be confused
when in 4x4, if your diffs are open then you have no problem but if you use lockers in 4x4 in snow or ice the vehicle crowns,(crownng is the vehicle sliding to the bottom of the road) what happens is there is equal traction on both tires and nothing is dragging, it is the friction of the dragging tire keeps the vehicle where it is at in lane, so lockers are not your friend in ice and snow, you are paying for lockers in the Rubicon package, and you state you will not use it much off road so why pay for the lockers or the 4 to 1 tcase, A Sahara with out lockers and a 2.67 to 1 tcase will do great for your application.
the only place you want to use the lockers or the low range is off road. the rubicon has a 4 to 1 low range, the Sahara has a 2.67 to 1 low range, the difference is huge, if you are not going rock crawling a 4 to 1 low range is a pain. Most terrain a 2.67 is great, in the deserts a 2 to 1 is great.
I am only trying to save you a few dollars
I mean it sounds like you want a Rubicon because you want a big bad jeep, but in reality you are buying a OFF ROAD package that you will never use and when you sell it the only person who will benefit is the off road enthusiast that buys it from you thanking you for keeping it pristene so he had a cheap Rubicon to build
Remember using lockers on road can cause driveline bind and that breaks expensive parts. There is no reason to have them on a jeep that is not going to go off road very much.
I could print all day here, and I am telling you the truth. The Rubicon is a 2000 dollar package that I think you re not going to use. over the course of a 6 year loan that is 34.55 dollars a month and 2455.06 over the length of the loan, plus there is an insurance premium for going with a Rubicon over a Sahara.
the reason it will not be as efficient on road is you are getting 4.11 gears in the differentials, those are in there so the wheels will turn slower and develop more torque. A Sahara is gong have 3.73 gears in the diffs, much better for gas mileage.