Wow PP your nursery is really coming along nicely!! I used the exact same sticky paper for lining in baby's cupboard and drawers

Great minds!!!
As for the nappies, i wouldnt worry about it too much. you can go to any Baby City and exchange without a slip. so if you have too many of one size you can just go and swop it for whatever size you need. same with the brand, if you feel like you rather prefer Pampers and bought a whole lot of Huggies, they will be more than happy to swop it for you. This only applies to Pampers and Huggies, unfortunately not to Cuddlers or any of those other brands.
The clothing can get a bit tricky on the other hand, but nothing to stress about!! Leandi was only 2.6kg when she was born so she needed tiny baby clothing when she left the hospital as even the newborn clothing were way too big for her. (my mom had to go buy and wash some clothes as i only had 1 tiny baby outfit) she only wore the tiny baby for about 2 weeks, then started to fit into the newborn. and about 2 weeks later she fitted into her 0-3 month clothing. i would say that if you have about 6-8 newborn outfits you should be good. you dress baby twice a day so whenever you run out, its quick to handwash some babygrows or outfits.
My dr has already told me that this lg will also be tiny like her sister so i got some tiny baby just to be prepared.
Cant really give any input on if you're baby is 3.5kg+ maybe some of the other mommies can help?