I cannot speak to your particular unit, but my 2011 Rubicon ran like a top at 8000-9000 feet north of Sante Fe, without a jet change. I did take 152, 155 and 158 jets with me, but once there didn't need 'em. I assume it has a 162 installed from the factory, and I know it's not been touched since new.
After week of riding the plug was slightly darker, but not what you'd think from running rich. It started and ran like a top, no hesitation and plenty of power.
So, unless you have no where to work in New Mexico, you may want to try your unit as is.
If you need to change, you may want to consider a 158... perhaps not optimal, but lean enough to run altitude ok, and probably not too lean for back home either.
Your success may vary, and save a second jet change when you get back home. In any event check you plug regularly until your comfortable with your choice.... and better rich than lean.
2012 Foreman (2) es, power steering
2011 Rubicon (1)Power steering
2009 Rubicon (1)Power steering, 27" Kenda BearClaw HTRs
Others Stock wheels and tires
Warn xt2500 winch (1) w/Warn mounts
Warn 54" snow plow, w/Warn Provantage mounts
Many different silencers for stock exhaust add on or replacement under $50 (why pay $150 for silent rider?)
1963 Sportster, '55 K Frame.
Metal work, good wrench, engineer.