Efficiency

Level 2 of the Dungeon
(0, 0, D:2)
  6 gold pieces
(8, 14, D:2)
  20 arrows

Level 3 of the Dungeon
(0, 0, D:3)
  a potion of flight
(2, -12, D:3)
  18 gold pieces
(3, -17, D:3)
  a +0 robe
(3, 1, D:3)
  a potion of curing

Level 4 of the Dungeon
(0, 0, D:4)
  23 arrows
(5, -2, D:4)
  20 sling bullets
(20, -8, D:4)
  19 arrows

Level 5 of the Dungeon
(0, 0, D:5)
  a +0 shortbow
  22 arrows
(1, -4, D:5)
  an arrow
(1, -1, D:5)
  an arrow
(2, -2, D:5)
  2 arrows
(5, -3, D:5)
  a +0 robe
(13, 5, D:5)
  a +0 whip (still there?)
  a +0 leather armour (still there?)
  16 gold pieces (still there?)
(20, 16, D:5)
  4 bolts
(25, 24, D:5)
  a potion of heal wounds

Level 6 of the Dungeon
(0, 0, D:6)
  a worker ant corpse
(11, 2, D:6)
  a +0 chain mail of poison resistance
(23, -22, D:6)
  25 stones

Level 7 of the Dungeon
(0, 0, D:7)
  4 javelins
(11, -2, D:7)
  a +0 ring mail
(16, -15, D:7)
  10 gold pieces

Level 8 of the Dungeon
[Shop] Ypuib's Assorted Antiques
  (Shop contents are unknown)
(0, 0, D:8)
  18 gold pieces

the Ecumenical Temple