Hi and welcome!
Just to inform everyone that all the files mentioned here, including the missing ones, are now stored on the Pangya Inventory website:
The two missing Albatross18 and PangYa installers are included, too. I later found out that Google Drive was rejecting them since it wrongly recognized a file in them as malware (probably GameGuard related).
Related the Indonesian client, on Inventory there’s only the 212a installer and the 213h4 client, no 300 installer unfortunately:
Archive.org unfortunately doesn’t have the page between 2005 and 2008 stored, when Pangya IND was active, so no installer is available there, I hope someone else has a copy of it:
Varthall