First timer…

I am intern at a small company(alone)setting up a p2p network, currently 6(will expand no larger than 12). My question is this, for organnzation I know I will need a patch panel for neatness in a small area, that’s for sure! Is it hard to install the panel need directions even if it is basic.

2 – We are going to be letting users access via the internet to lets say download homework assigments. Do I need a firewall on all pcs or
just the peer server?
I know there is an answer here! 🙂