In addition to Stat/Status Calculator, that's a good suggestion if the calculator would allow equipping of equipments and using consumable items and calculate, although I think this can be done by using the Test Server, it's much easier for users this way (but obviously be a hard part in terms of the developers of the calc).
Can I ask something additional here? How about the job change quest going to 3rd class, is it going to be added too? I'm using 3ceam, but as I seen so far, the skills aren't complete. Plus, to achieve 3rd class, there are custom NPC that will help the players achieve 3rd class. I can't seem to find the official quest to attain 3rd Class.