I confirm everything you mentioned.
I would like to add that the Libyans take your passport when you arrive in the country, give you a card as expat, and give your passport back when you leave the country after one month (or when you fly). That means that you ARE NOT ALLOWED TO LEAVE THE COUNTRY in between even if you have days off.
In addition, to get your ticket to go home every months, you have to spend hours in Afriqiyah office waiting for the letter which authorizes you to go home.... which means: go to the office (45 minutes from Janzour), spend your time waiting for Afriqiyah people and go back to Janzour... sometimes without your paper and ticket because they were not in the mood to prepare it for you!!!!