Please do Explain though. Do you want an Auction house for its Bidding Apparatus of Blind or Timed Bidding? Blind Bidding being 100% Corruptible by RMT's day one its released totally breaking the economy. Or Timed Bidding which is a feature 80% Ignored by most users when implemented as an option in a marketing system.
Or do you just want an easy to use and fast system that lets you buy and sell items without much thought.
Because You don't need an Auction house for that second option.