Just did a few runs and wrote down my findings:
// Level 26
North, The reaching woods
1. Chest: 38 gold, Fluorspar
Buried Treasure: 299 gold
Skeleton: 50 x throwing axes (purple light), shortbow (+4 mighty)
Boss chest: 193 gold, greatsword (+1 EB, light bright: Purple, Mithral)
Boss drop: Book (Advanced abjuratives), scroll flamestrike (7), potion: false life, mace 1d4 piercing, 20 SR, 342 gold
Gnoll corpse (skeleton): 18 gold
Goblin corpse: 15 gold
Hidden stash: 722 gold
Amn, Cloud Peaks (Cloudpeakmountainpass)
Random drop: Dagger: +1 AC, AB vs Evil +1, Damage Bonus Electrical 2 and 72 gold
Random drop: 139 gold
1. Wormhole: 18 gold, Sapphire
2. Wormhole: 46 gold, bloodstone, potion of lesser vigor
Amn, Cloud Peaks Descent, Lizard cave
1. Skeleton: 91 gold
1. Crate: 42 gold, Full plate: (not enhanced), Amulet: +1 dex
Lizard boss: Scroll: Primal speed
Boss Chest: 38 gold, Hide Armor +2
Skeleton: Helmet: +1 AC, Light Dim Yellow, Spell Immunity: Grease
Chest: 35 gold, scroll: Searing Light, Healer's kit +1, Thieves Tools +10
Crate: Helmet: AC vs Bludgeoning +1
Random drop: Darts (50): +3 mighty
Consumables used:
2 x Keen from Whetstone,
1 x Improved Mage Armor (wand)
2 x Heroism potions
6 x Heal potions (nasty lizard shamans

)
Frost giants Exterior
Chest: 892 gold, Fullplate: +1 AC, Improved saves mind +1, Material (Umber Hulk)
Frost giants Interior
Random Drop: Studded Leather Armor: +6 hitpoints, Improved Saving Throws reflex +1
1 Chest: 64 gold, raise dead scroll
2 Chest: 689 Gold, Potion of Owl's Wisdom, greater
3 Chest: 33 gold, potion of blurry eyes, Scythe: +2 EB
Bag of valuables: 44 gold, Scroll3: Feeblemind
Didn't do boss room too difficult
Consumables used:
4 x Heal potion
1 x Greater resistance (wand)
1 x Heroism(potion)
1 x Improved Mage armor (wand)
1 x Lesser restore (potion)
2 x least spell mantle (wand)
Sold for: 160 + 8 + 1400 + 738 + 235 + 35 + 22 + 100 + 15 + 1400 + 396 + 17 + 660 + 538 + 1400 + 991 + 53 + 41 + 90 + 1400 + 161 + 1400 =
11260
11260 + 3830 (gold found) =
15090
Heal potions alone:
7600
That's a profit of
7490
I haven't counted wand and potion usage (except heal potions of course) in this since I don't remember what I paid for them, but the profit is definitely lower with them included
I also did not include the mace I found since I thought it might sell for a little more on auctions, with some luck.
The frost giants were obviously a gamble since it's high CR for me but I didn't get any surprises, and naturally, I skipped the boss room.
These runs took me about 2 hours and some.