Yeah, AK1 is a master at this or something. He just has years of stuff backed up or something, he'll be finding the most random stuff. You can probably talk to him for the rest.
Anyways, do you have an author for those stages?
I believe this is the Volfogg you're looking for.
https://www.andersonkenya1.net/files/file/24437-big-volfogg/
https://www.mediafire.com/file/ml7qopdxgr2xloq/Big_Volfogg.zip/file