Efficiency

Level 4 of the Dungeon
(0, 0, D:4)
  a +0 hunting sling
(6, 3, D:4)
  a leopard gecko corpse (skeletalised by now)
(12, 7, D:4)
  11 gold pieces

Level 5 of the Dungeon
[Shop] Ajocead's Armour Emporium
  a +0 ring mail (48 gold)
  a +0 chain mail (54 gold)
  a +0 scale mail (48 gold)
  a +0 plate armour (276 gold)
  a +0 ring mail (48 gold)
  a +0 leather armour (24 gold)
  a +0 scale mail (48 gold)
  a +0 scale mail (48 gold)
(0, 0, D:5)
  8 gold pieces
(11, 1, D:5)
  16 gold pieces
(12, -10, D:5)
  17 stones
(30, 23, D:5)
  a jackal corpse (skeletalised by now)
(32, 17, D:5)
  19 gold pieces

Level 6 of the Dungeon
(0, 0, D:6)
  a +0 rapier
  a +0 ring mail
  a wand of flame (8)
  the elf corpse of Duvessa
(2, -14, D:6)
  a jackal corpse
(2, -13, D:6)
  a jackal corpse
(3, -11, D:6)
  10 stones
(3, -3, D:6)
  an arrow
(4, -14, D:6)
  a ball python corpse
(8, -10, D:6)
  a +0 leather armour
(9, -9, D:6)
  28 arrows
(10, 6, D:6)
  15 gold pieces
(11, -15, D:6)
  14 poisoned darts

Level 7 of the Dungeon
(0, 0, D:7)
  11 gold pieces