New Resource - Cleaner way then remapping harvestable?

Hey Guys,

I was just reading a little bit through the forum and realized, that remapping items isn’t a very clean/stackable way of modding. That’s why I was wondering if there is maybe a better way doing this for my example:

I saw something about Sublevels in which you could add your hole own resource to the map. Is this a cleaner way? And what about interoperability with other maps in this case?

Thanks in advance.