You do realize Gaddafi's common currency idea was a pipe dream which had a lower chance of happening than the Earth getting hit by an asteroid? Throughout his decades in power, Gaddafi had all kinds of "ideas" like this, however he couldn't even implement them with his neighbors. The only person who verbally professed to support Gaddafi's vision was Robert Mugabe in Zimbabwe. The same economic genius who made everyone in his country a zillionaire.

Guess what currency Zimbabwe ended up adopting?

The US dollar.