In Pokémon Mystery Dungeon: Explorers of Sky, how many Explorer Ranks do I have to get through until I achieve Guldmaster? At the moment I am *Master Rank**.
And is Guildmaster the final rank?
If you're at Master, you need two more: Master and Master. After that is Guildmaster.
And no, it's not the final rank. The final rank is Secret Rank, which can only be obtained by rescuing Scizor from Crevice Cave in the postgame.