I suspect that not a single penny of the cost came from Libyan pockets. Probably didn’t have a lot of involvement in the engineering either.
They are oil rich so can finance all the engineering and construction that they want, and if what you say is true, why did it all end with the execution of Khadafy. Khadafy was nuts, but he did have a vision, and it was a great vision. I hope they pick up at some point where he left off.
Who do you think paid for it? I don't think they get much foreign aid.
I'm guessing that Libya did pay for it, using oil proceeds.