Turn-based is more or less already in place, time limits on it just spoils the fun.
Conclusion:
If Oz feels overwhelmed he must take an apprentice, but it doesn't have to be someone involved in Taijitu RP or even NS as far as I am concerned as long as the apprentice share his dedication and attention to detail as he does and that their work will be fully compatible (eg. editing the same files in the same way)