Your best shot is probably to fork off https://github.com/psychobunny/nodebb-plugin-import-phpbb and use nodebb-plugin-import with your custom modifications.
Looking at the wowhead documentation, I think I can only do it by item ID
Thottbot (if you were around from vanilla to early BC you might know of this) was the original database before wowhead existed and they did do their tooltips by item name
Thank you @a_5mith, that's what I imagined but I think it's worth asking before putting some energy in that :).
I'll follow your advice and take a look at other import plugins.
Regards.
