Thanks for your very kind offer.
It seems you want something works like this: a. Get English localization files, b. translate it into other language, c. Put new localization file back to install directory or some sub-directory of it. d. Restart CAS and it will show in new localization language.
Or we could do better, provider one option so user could select language it supports, and restart CAS the selection will take effect.
Currently we could provide English localization files to you but we could not let user change language of their copies by them self. you may need translate those files and send them back to developers so they could make release to this language.