Well, here is the spoiler of all the changes made by the Lost Items component (I've highlighted the items that you would be interested in):
Ashirukuru, Shadow Warrior (in Durlag's Tower [TotSC])Replaced Short Sword with
Wazikashi +1Added Boots of Phasing, Poisoned Throwing Dagger
Beyn (in the Ice Island cave [TotSC])Added Poisoned Throwing Dagger, Bracers of Defense AC4, Fail +2
Bishop (in the Chess game of Durlag's Tower [TotSC]Added Full Plate Mail +1, Large Shield +1, Flail +1, Sling of Seeking +2, Sunstone Bullet +1
Davaeorn ('boss' of Cloakwood Mines)Added
Scroll Case,
Bag of Holding, Poisoned Throwing Dagger, Sling +2, Sunstone Bullet +1
Gorion (umm, who is he? Gets killed right after the tutorial)Added
Gem Bag,
Scroll Case,
Potion Case, Scroll of Identify
Gnoll Chieftan (at Gnoll Stronghold and the area just South of the Lighthouse area)Replaced Halbert with Spear +1
Added Hide Armor
Jardak (resides in a house in Baldur's Gate North)Replaced Long Sword +1 with
Katana +2Added Sling +2, Sunstone Bullet +1
Nimbul (a hostile encounter at Nashkel)Replaced Short Sword +1 with
Scimitar +1Added Gem Bag, Scroll Case
Prism (Nashkel Mines exterior; the one hunted by Greywolf)Added Gem Bag, Potion Case
Raemon (in Tazok's tent in the Bandit Camp)Replaced Long Sword with Spear +2
Rashad (the poisoner of Duke Eltan in the final chapter)Replaced Long Sword with
Katana +2Slythe (one of the assassins of Scar found in the final chapter)Replaced Light Crossbow with Boomerang Dagger +2
Added Poisoned Throwing Dagger
Tam (found in the exit of the Candlkeep Catacombs)Replaced Short Sword with Spear +2
Teven (at Bandit Camp)Replaced Long Sword with
Wazikashi +1Added Poisoned Throwing Dagger
Teyngan (a bandit north-west of Nashkel)Replaced Mace with Flail +1
Added Sling +1, Sunstone Bullet +1
Vax (a bandit south of Nashkel)Replaced Halberd with
Wazikashi +1Added
Ninja-To +1,
2 Ammo Belts, Poisoned Throwing Dagger
FW2602 - Candlekeep Introduction: Shank's ShackAdded to Container 3: Potion of Healing,
unbreakable Ninja-To,
unbreakable KatanaFW4800 - NashkelAdded to Container 7:
Ammo Belt, Bracers of Defense AC5, Dart of Stunning
Replace in Container 7: Ankheg Plate Mail with Hide Armor
Change stackable size to 50- Arrows, Arrows +1, Acid Arrows, Arrow of Biting, Arrows of Detonation, Arrow of Fire, Arrows of Ice, Arrows of Piercing, Arrow +2
- Throwing Axe
- Bolt, Bolt +1, Bolt of Lightning, Bolt of Biting, Bolt of Polymorphing, Bolt +2
- Bullet, Bullet +1, Bullet +2, Sunstone Bullet +1
- Throwing Dagger, Poisoned Throwing Dagger
- Dart, Dart +1, Dart of Stunning, Dart of Wounding
As you can see, you get a number of 'gifts' right at the start of the game with Lost Items.
Oh, and it doesn't matter what you put after the '//' in the line, since that symbol simply comments everything after it out (till the end of line) no matter what follows it.
@Miloch: Yes, I can move to the ammo stacks part to a separate component.