This has pretty massive potential provided you find the right balance among the Guild's various personalities and identity related abilities. There are a fair number familiar with the system as is and the nebulous, largely undefined existence of the Guild as a meta roleplaying concept gives access to just about any environment. At the same time I admit I have no idea how you intend to "balance" anything beyond a Gentleman's Agreement of the players to not come unhinged with their builds, or if you have some limit in mind in particular.