11x14 is almost square. Based on my experience with stuffing my large sleeping bag into one of my cavernous Ortlieb Back Packer Plus panniers, I think stuffing an tent that size into a pannier will take up a lot more room that you might imagine. And I don't understand the desire to put the tent in a pannier anyway. Why not simply strap it to the rear rack like the overwhelming majority of people I have seen touring (and toured with) do/have done?


As for configuration (e.g., headroom, No. of doors, etc.), those are purely personal matters. And if you are carrying a lot of this and that, you might find that being able to drop 1.5 lbs. from one item could make a difference. In fact, if you will be carrying a lot of this and that, I recommend that you do try to drop weight from items like pads and sleeping bags.