Within the first 24 hours of the early access program our guild, 'House of the New Dawn' has been founded.
And it seems custom ranks are not available in age of conan, until they fix this in a patch we will have the following (nemedian) ranks:
Aspirant - Banthalos
Vassal - Theroshan
Squire - Shan're
Knight - Balah
Commendant - Dorini
Lord - Dathanar
From this list then we miss the ranks Sharifal and Danano, but theres not much that can be done about this at the moment I'm afraid, very dissapointing.
Please send a whisper to 'Rashad' for an invitation, it is also possible, I believe to apply for guild membership in-game.