Hello and welcome to the tree
That sounds like enough nappies to me but I can t remember how many I had!
I used bambino mio exclusively with dd1 and have used the prefolds from the sets with both of my other two. They do the job, are easy to wash and dry quicker than fitteds. I hated the wraps though but I think they ve improved.
With prefolds it's the wraps that you will go through lots too but they do dry quickly, especially as you re heading towards summer. I used to give them a quick hand wash if I was short.
The other questions really depend on the size and shape of your baby. The cotton terries will last forever
they will be very bulky on a newborn but perfectly usable, baby will just have a big bottom
I would recommend getting some more fleece liners, you can buy fleece from any material shop/ haberdashery shop that can be cut up to fit prefolds or terries etc.
Good luck and enjoy yourself