Elemental Staffs 5, 6, 7, and 8

Is there any way to obtain these staffs in-game on other versions through non-NX based means? I've seen a couple of SSs of Estaffs 1-4 dropping, so I figured the higher-end ones would drop somewhere also, just don't know if they actually do...

My bad if this has been answered indirectly elsewhere. T_T