I would be careful about going too cheap, especially for a newborn. I had to borrow a diaper and wipes from my sister in law once, and that’s when I discovered that a) my kids had sensitive skin and b) not all diapers fit the same way.
We generally stuck with what the hospital gave us, as that was working and being new parents was hard enough, but if you want to experiment I would start with small packs first until you see what works best for you and your family.
Good luck! It’s amazing how quickly the time goes.