Efficiency

Level 3 of the Dungeon
(0, 0, D:3)
  6 gold pieces

Level 4 of the Dungeon
(0, 0, D:4)
  a +0 whip
(18, 7, D:4)
  14 gold pieces
(20, -1, D:4)
  a +0 rapier
(21, 9, D:4)
  13 gold pieces
(22, 4, D:4)
  a +0 whip (still there?)
  a +0 hand crossbow (still there?)
  28 bolts (still there?)
  a kobold corpse (still there?)

Level 5 of the Dungeon
(0, 0, D:5)
  8 gold pieces
(1, -3, D:5)
  12 gold pieces
(18, -4, D:5)
  24 stones
(22, -3, D:5)
  18 gold pieces
(23, 3, D:5)
  a +0 halberd

Level 6 of the Dungeon
(0, 0, D:6)
  10 arrows