Africa - Cheap safari in South Africa possible?

I went on a safari with a friend two years ago in South Africa and we would like to go back this year in August or September. We stayed for 4 nights at the Arathusa Lodge and we loved it but it was pretty expensive. We didn't mind paying that much since it was our first time but for this trip, we want to spend a full week (7 nights) on safari and we'd like to pay as little as possible, as long as the camp is clean and offers a good safari experience. I know it would be cheaper to rent a car and explore Kruger on our own but we don't feel comfortable doing that. Is there any chance we could do this for under 1500$ total per person?