Item 1: https://backpack.tf/item/16877367255

Sale 1:

https://backpack.tf/profiles/76561197998473085#!/compare/1778716800/1778803200

https://backpack.tf/profiles/76561199132397846#!/compare/1778716800/1778803200

Dumped to a bot for 100 keys and 36.77

Rounding up to 101 keys

Then moved to bots owners BP then MP, untrace between MP and Loz though

Item 2: https://backpack.tf/item/15511229731

Sale 2:

https://backpack.tf/profiles/76561198773375241#!/compare/1776988800/1780099200

https://backpack.tf/profiles/76561198882175555#!/compare/1777852800/1778976000

Untrace, looks like a BP buy though

Sale 3:

https://backpack.tf/profiles/76561198882175555#!/compare/1779148800/1779235200

https://backpack.tf/profiles/76561199581722058#!/compare/1779148800/1779235200

Dumped with some other stuff to STN for 141 keys (ID 17052398839)

Sale 4:

https://backpack.tf/profiles/76561199581722058#!/compare/1779408000/1779494400

https://backpack.tf/profiles/76561198126524060#!/compare/1779408000/1779494400

Sold for 107 keys pure (ID 17079903305)

Item 3: https://backpack.tf/item/15213018864

Sale 5:

https://backpack.tf/profiles/76561199581722058#!/compare/1783036800/1783123200

https://backpack.tf/profiles/76561198125791160#!/compare/1783036800/1783123200

Sold for 103 keys pure (ID 17220352056)

Item 4: https://backpack.tf/item/15181767340

Sale 6:

https://backpack.tf/profiles/76561199384906333#!/compare/1777593600/1777680000

https://backpack.tf/profiles/76561198340767997#!/compare/1735948800/1777680000

Bulk

Sale 7:

https://backpack.tf/profiles/76561198340767997#!/compare/1777680000/1777766400

https://backpack.tf/profiles/76561197966524361#!/compare/1777680000/1777766400

Bulk for Sakura Smoke Bomb Woolen Warmer. Using there

Sale 8:

https://backpack.tf/profiles/76561197966524361#!/compare/1777766400/1777852800

https://backpack.tf/profiles/76561199389549498#!/compare/1777766400/1777852800

Dumped to a bot for 80 keys pure (ID 16993122083)

Then untrace between bot and STN

Sale 9:

https://backpack.tf/profiles/76561198868457283#!/compare/1777939200/1778025600

https://backpack.tf/profiles/76561199207750538#!/compare/1777939200/1778025600

Bulk

Sale 10:

https://backpack.tf/profiles/76561199207750538#!/compare/1779580800/1779667200

https://backpack.tf/profiles/76561198066743294#!/compare/1779580800/1779667200

Bulkish for Purple Energy Hat with No Name. Better used there

Sale 11:

https://backpack.tf/profiles/76561198066743294#!/compare/1779667200/1780099200

https://backpack.tf/profiles/76561197970852453#!/compare/1780099200/1780185600

Cannot see it appear in either of their BP

Item 5: https://backpack.tf/item/15156764166

Sale 12:

https://backpack.tf/profiles/76561198874286938#!/compare/1780272000/1780358400

https://backpack.tf/profiles/76561198065097426#!/compare/1780272000/1780358400

Sold for 110 keys pure (ID 17101354653)

//

Sellers:

BPTF - https://imgur.com/a/eNxK2k5 - 1 @ 115, 1 @ 118, 1 @ 130. 1 listed on MP as per below

MPTF - https://marketplace.tf/items/tf2/31481;5;u350 - 2 @ $249.99 (~133 keys)

STN - https://stntrading.eu/item/tf2/Unusual+Spectral+Fire+Hellish+Overlord - None

SCM - https://steamcommunity.com/market/listings/440/Unusual%20Hellish%20Overlord?appid=440&q=Spectral+Fire - https://imgur.com/a/eJntHiv - $465.32 AUD (~140 keys)

Sale(s):

101, 107, 103, 80, 110

Excluding 80 keys due to buyers being significantly higher now and other sales indicate.

Going with 101 - 110 keys