I have about:

8 bunny suits 0000
8 bunny suits 000
7 singlets 000
5 pants 000
15 short sleeve legless suits 000 (my partner and I were both born with VERY long legs and it's coming into summer)
5 two piece outfits 000

And a bunch of odds and ends that range from size 0000-1. We got two garbage bags full of second hand clothes size 00-2 that we've picked what we liked, washed in detol, water, and amolin to make sure they are clean as they don't stay little for long BUT you need to change them often!