It was as silly and meaningless a dream as being the king of kings of Africa. If you think Saudi Arabia, Kuwait, Egypt, Nigeria, South Africa, or most other countries gave a fuck about anything Libya did or planned to do, you're not being realistic.
The United States intervened in Libya because civilians were being slaughtered and we've wanted to liberate Libya for decades. It was cheap, easy, and effective. It has nothing to do with your fanciful African Dinar, which even if created would have gone nowhere.