Everythings included to do that checkout /opt/PXE. I have a video ready to upload talking you through it but here's a quick guide.

cd over to /opt/PXE and open up globals.sh
Set your parameters and make sure you enter a nameserver. most can stay as they are you jest want to worry about
NET_NIC = internet facing network adapter
SRV_NIC = adapter you want to run the server from
NAMESERVERS = your nameserver. You can run nameserver.sh to get yours or use googles which is 8.8.8.8

save and close.

next run pxe_menu.sh
choose option 1
choose option 2
quit

and your golden Plug your nodes into your switch and each computer will boot linuxcoin PXE and be ready to roll.