What you need is an Inventory-Catalogue-Auction system, there are some available for free download and trying at http://www.hotscripts.com
My company has an off-the-shelf Inventory-Catalogue system but does not have Auction capability.
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R4: 152:6:24 General Arclight of Carida [Tokra]
R5: 23:12:24 Tuhan of Syurga [ACID] - Sinners of Society
R6: 22:10:1 Chairman of I.O. Group of Companies [ACID][Olympus] - Draco Domiens
R7: 30:24:2 Director of Genting Highlands[VtS] - Kriminally Insane
R8 - R9: [Retired][Real Life]
R9.5: 34:3:15 Tuhan of Syurga [BoredOfRL][Fun] - Hidden Paradise