if you meant 2 privates.. just put all the systextures, animations, sounds.. besides system.. from the patches and place em in same folders.
then you have to replace system folders for each server youre gonna play atm.
or just copy game 2x and have one for each server.. also check your hosts file.. if the private wont support system folder in patch.. you can set hosts to it, since we use moded l2.ini anyway..