Glad to hear this could be of some use :).
Haha, for the data types we internally have a goal of bringing all the different faker libraries data generators over to ours with mostly matching APIs. If I remember right faker-ruby is where the Tolkien quotes come from.
As for brining over custom data type we plan to launch the ability to add your own custom datasets and use them for generation this week. As for getting them anonymized, could you elaborate on what you mean exactly?