Baby registry insight.

Hey ladies! I have started a registry with Babylist. And I love that it lets you have a "coupon" for used items and help around the house as an option instead of buying things! 
This is what I came up with for our expecting twins. We have a crib already and they will be sleeping together. 
Is there anything you gals can think of I may need to add? 
For cloth diapering mamas is this a good start? I'm hoping for 48 prefolds and 10-12 covers. Any other CD supplies I'll need? I plan to exclusively breastfeed. 
Thanks in advance!!