For this there is a solution, I have posted that earlier today, like totem upkeep and with certain amount of active members people on that tribe could craft supreme quality items for trade purposes, where solo players can gather supreme quality mats to trade, it also can be set as if a trybe less then 5 people? can find supreme mats and pull supreme resources, and big tribes over 30 active members could craft supreme items but won't be able to find supreme resources, for trade purpuses.