Neither solution is viable cause you still don't get it. ONE server CANNOT accommodate ALL role players. I'm sorry but your server has a hard limit to the number of players it can sustain. You have no choice but to accept that fact. No amount of stomping your feet will change it. You can only pack so many sardines in a can before you simply cannot fit anymore. Congrats you're a sardine and the Balmung can is full.
In no uncertain terms, you will never get what you want. You have no say in the matter, no choice to offer, and no other options. I know that sounds harsh but you seem like you're not listening. Balmung and Gilgamesh are at capacity. Infinite capacity is NOT POSSIBLE.