i Dont have a lot to say just please add this plugin
AuctionMaster 2: https://www.spigotmc.org/resources/-auctionmaster-2--1-8-1-16-auctions-categories-bin-admin-view-fully-configurable.84784/
And AuctionMasterItemDisplay [Addon]:
https://www.spigotmc.org/resources/auctionmasteritemdisplay-addon.79002/
Edit: Please add deluxehub to: https://www.spigotmc.org/resources/deluxehub-3-professional-hub-management.49425/