You don't mention the age the of the articles but I'm going to assume older than not if they were on eZineA.
That said, if they really were good and at least a couple of years old, it shouldn't be too much work to update them, expand one, add media (images, video if you can) and drop it on say Squido or maybe HubPages and see how it ranks in comparison to the copies. If it performs you'll know the others are fit for re-post elsewhere.
But like Andy said, a spinning would absolutely be a waste of your time.