Apat can drop Source of Faith rarely

and king crimson doesn't drop,onitetsu, she drops the famed smith hammer that can be crafted into onitetsu.

the onitetsu can then be crafted into an onitetsu manual by combining it with rebirth jewels.
then you take an onislicer and combine it with the onitetsu to make an onitetsu with a range of M, which can then be wielded by an alchemist frommthe back row

also, i just found out, 2 shishamo = squid, 2 squid = mackerel, 2 mackeral = something, i don't know what it is yet, because it's a level 99 item.

and just a heads up, you have a couple of typos.

you have the first 2 bosses listed as Stilla and . . Stilla.
the second one on the list is Tira. and her first loot drop , you accidentally wrote hi "anit" plant instead of hi "anti" plant

oh, and thanks for taking the time to gather this info. much appreciated.

also worth noting that the life fruits that drop from many of these bosses are best used in this manner,
the life fruits will give someone +5-6 max hp permanently, but if you go to the lab combine 2 life fruits, if costs 0 gold and creates "lifefruit", whuch is a hugher tier "life fruit" and that gives +15-16 max hp.
it's more efficient than the life fruit.

With Gao and Thief you can make Gungir and Jormungandr.

Gungir is Thief / Alchemist / Monk only 2H 49-98 x5 damage, Inflicts Stun, Long Range, 2 handed, with Magic Res+ / Special Res+ / HP+3, On Use: Teleport. Need 7 pieces of Millenium Wood (desynth some of the L50 wood the thief drops for it) + 1 Dream Fragment (3x white gold, dropped by Gao).

For money, Gao drops money and once you can ID one of the items, make sure it's in a stack of at least 2 (more the better) and sell the extras for cash. Best done with the 50,000 value items Thief drops.

Thief being the first boss while also dropping Tier 6 crafting mats (which ID for like 50,000 and thus would sell for close to that) is some first class irony. (He wasn't even considered a boss in the original wiki, heh.)