Would be an interesting ability or item that would be purchaseable with lucky coins. Would effectively make artifacts show up on your map like ore or herb tracking does. You could make it a Planar Ability (time duration, uses planar charges) or just an item or permanent ability (once on its on).

Instead of Lucky Coins it could also just be a quest once you a reach a certain "level" of antiquarian, and once you've completed so many sets he sends you on a quest to gather bits to build the device.