We did it!
Also - I hate phpBB!
After a lot of cursing and a lot of letting an import script running overnight and checking back and forth if everything goes well, I finalised the last Topic last night.
Everything SHOULD have been imported, albeit I did have to delete two rar and a zip Attachment, since Discourse disliked them a lot. I also upped the max Body lenght of a Text, lowered the minimum title lenght and a lot more.
You might still find some missing attachments or old phpBB Code, if so - just edit the post if it’s yours or tell me so I can edit it.
You can find a list of the new features here:https://www.discourse.org/features
Enjoy your new Home