I dont like the idea of "skins" for weapons, too. This is 4story and not Guild Wars 2, where everything visual is based on skins.
In terms of the gor weapons and eq: Maybe just implement it directly? Place a NPC at gebra peace zone who can craft you the Gor PvP EQ. But we should consider to change the values of the Gor PvP, so that it has the stats of "normal" deri/valo PvP. Else every other PvP would get a downgrade, which is not useful, when we just talking about optics.
In terms of the gor weapons and eq: Maybe just implement it directly? Place a NPC at gebra peace zone who can craft you the Gor PvP EQ. But we should consider to change the values of the Gor PvP, so that it has the stats of "normal" deri/valo PvP. Else every other PvP would get a downgrade, which is not useful, when we just talking about optics.