If you are expecting 10 - 16 clutches of ball python eggs, that is around 60 - 100 babies. If they eat every three to five days, that means you need about 400 - 800 feeders a month. Say you are lucky and convert over to f/t within two weeks rather than a month. That is still 200 - 400 live feeder rodents.
I would highly recommend you have a plan in place for feeders before producing that many clutches. It takes a while to convert a hatchling over to f/t. Most of mine will eat live a couple of times, then convert. Sometimes, they will start on f/t, but not often. So, you do need a good steady reliable supplier of live rodents or you need to breed them, IMHO. Otherwise, you are going to have some very hungry weak baby ball pythons.
It is not very easy getting a hatchling to feed the first time on f/t. And, with more than 60+ babies, that is a lot of work.