I cannot help you with Curacao, however I am curious about going to Caracas.
Have you been to CCS recently?
It is not the same place it was even just five years ago. It is the most dangerous city on the planet and the nation as a whole is teetering on violent revolution.
Perhaps a charter to Canaima would be possible directly from the islands, but Caracas is a fool's errand right now and for the near future.