Auction House Plugin

(sorry I post so much on here, I just have a bunch of ideas kajhldfg)
An auction house plugin would be beneficial for players to sell one off items, such as tools or rare items. To prevent spam, limits can be set for certain ranks: for example, the member rank could have four auction house slots at a time.
A quick google brought up this plugin, which I’ve seen used on almost every server I’ve played on: