My idea is that guild master would be able to store such items from the guild. Each member may use “guild items” - for example, have infinite battery in my guild and we would ask other members as well, but we do not trust them much. This way if one part is the drum and someone else needs it, the guild staff (or someone with a higher rank) can take the barrel of a member and then put it into storage or sent to a guild, which needs it. If the guy with the theme of the guild out of the guild, which will store the guild.
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