You project is going very well. I want to see whats will happen.
Just pay attention on the original game client, it hs made on base of another Gravity's game so you can find many unused codes. Some can be useful, and some are useless. Well, Gravity was improved a lot their clients this year, fixing some issues, improving the basic interface with more user-friendly systems. And they might yo improve more it on next year.
Maybe you can save or waste some time trying to keep your client working with the last version of Ragnarök avalible.