People here give like 1001 opinions about OS that is best for mining.
The only one that I have used as plug&play is
LitecoinBAMT.
You can "burn" it on your 2Gb Usb-stick, modify cgminer.conf just like in windows.
Then modify bamt.conf so that the number of gpus match the number of gpus in your system,
its simple -> just change "1" to "0" and save.
Insert it to your rig and start fire up. After few minutes it should start mining automatically.
You would want to install xrdp -an remote desktop software that enables you to manage your rig
from different pc in your home.
You won't need even an display for your rig. But a display that you could be moved to your rig if needed
is recommended since if the system BIOS doesn't understand that the OS is in usb-stick.
You can't remote access your rig if the OS haven loaded.
Search for litecoin bamt and you will find even more detailed and simplified directions to guide you.