I direct you to this neat list of the resources required.
This, to get a human level 5 fighter/rogue. Who could be a poly morphed spy....two level 5 spells to teleport there and back, one level 4 spell to scry the area to get Studied carefully level familiarity, one hour to do said studying, no material cost for teleport, and scrying costs Eye of Eagle, nitric acid, copper, and zinc, and the time to teleport there and back.