Simply go into items.yml, copy-paste an existing section and modify it to your linking.
Sellwands being sold with ShopGUI+
ShopGUI+ offers an option in the config.yml to skip items that are named etc.
You need to install EliteAPI on your server, having just EliteMasks is not sufficient.
Factions Chest Access
While this might seem like an issue, it is intentional, if you want players to be able to use their sellwands in enemy territory containers you must configure your factions plugin so that they can open containers. Then, the sell-wand is an easy and quick way to steal the enemy's chest content.
Disable Stats Tracker
Simply toggle the option in the configuration and remove any stats placeholders from the item's lore.