[CentOS] Airprint to old printer using Centos server

Hi folks,

I've found a number of articles on setting up a Linux / CUPS / Avahi server to 
allow airprinting, but they all seem to be quite old.

Two questions:

1) Does anyone have a link for a more recent article, hopefully specifically 
for Centos7.

2) I'm on a structured, VLAN network.  Will I have to put a WIFI card into my 
Centos server to give it a presence on the WIFI before this will work?

Gary