Create new inventory, Sell Confirm. In this inventory you can choose the economy you want before selling. If you only have one economy you can use this inventory as a confirmation inventory.
Change better price reduction configuration. Using the system on zDrawer. This system is more complete. More information on here. Attention, you must update your config.yml file in the price section to have access to the new format.
Added the ability to use comma numbers to use the price multiplicator. You can now do /ah sell 10.5k