The pack I use most has a main compartment volume of 50 liters (SMD Starlite). I don't think this is too different from the pack you are describing. I have two tents that I use depending on anticipated conditions: a SMD Luna Solo. and a Big Agnes Fly Creek solo. To fit the tents into my pack in the best way, I fold/roll the tent to a shape that best fits the pack and then sew a stow sack to contain it. In fact, I have two bags for each tent, one to fit the Starlite and another to fit a homemade UL pack that I now use on shorter trips. The Fly Creek poles are carried in a separate stow sack that goes in the long mesh pocket of the Starlite and in the mesh pocket of the UL pack with the top held in place under a compression strap. My rolled sleeping pad and its protective stow sack go in the same place as do the poles. The top of the poles and pad are even with the top of the pack; I never have trouble with brush with this set up.