You know, Envato has plugins called must be. If your task is to create a catalog, manage it, change it depending on the requirements of the customer, you won’t find a better directory. Yes, many write - it’s complicated, there are a lot of settings at the backend... Look - if you need a bike - it's not that hard to make it in this plugin. But if you need a Boeing ... - then, after studying the docs, iif is not clear - ask the author (excellent support), and ... you will make (!) the plane using the same plugin. I am using lot of copies for years - believe me, I have not seen a better creation.