2002 Jeep Liberty 2720SL or 3326

I have a 2002 Jeep Liberty, 3.7L, automatic transmission with only 10,000 miles. I do not have the tow package but am going to add whatever it takes to make it the optimal TV. I'll add WDH, sway control, transmission cooler, air shocks, whatever. I live in Fairbanks, Alaska. The only steep grade I would encounter would be going up and down Thompson Pass over Valdez, very, very infrequently. What would be the optimal after factory tow package? I'm torn between the 2720SL since it is just my wife and me. But think I might like the 3326 because we will use it a lot. Is it unrealistic to tow the 3326 with my vehicle? Even if I max out the tow package?