Question for Lesotho Northern Parks

Hello! We are 3 friends planning on spending the day in Ts'ehlanyane National Park on December 5th and sleeping inside the park. We travel in a 4x4. What options are there for accomodation inside the park, or at the entrance, other than the Maliba lodge? I heard there is a guest house and you arrange the bookings, correct? how can we make a booking? can we have dinner there or do we have to bring our own food? thank you very much for your reply!!