Not sure if this is the correct place for this to be posted.
Just found this thread https://www.retroroms.info/forum/topic/Touhou-Project-All-In-One-Pack-Missing.htm.
It appears that they have been collecting the files from this dat https://github.com/Eggmansworld/Datfiles/releases/tag/touhou.
Currently one of the members is uploading all the files to https://mega.nz/folder/7NVnlTRB#gJN6Dx3KmxkgKrbOK-unnA/folder/KJ9DWAoB.
Just found this thread https://www.retroroms.info/forum/topic/Touhou-Project-All-In-One-Pack-Missing.htm.
It appears that they have been collecting the files from this dat https://github.com/Eggmansworld/Datfiles/releases/tag/touhou.
Currently one of the members is uploading all the files to https://mega.nz/folder/7NVnlTRB#gJN6Dx3KmxkgKrbOK-unnA/folder/KJ9DWAoB.