See http://backpack.tf/vote/id/5709524c8667475d5e26c021 for original discussion. Thanks to Foamy and FLuffy.

Credits to Foamy:

There have been a few other sales on this

The sale onthe other suggestion:

3 keys pure + Miami Nights Cotton Head for Stormy 13th hour Engi's Cap.

http://backpack.tf/vote/id/56f0febdba8d888d0318634e

http://i.imgur.com/wY5EIW7.jpg

http://i.imgur.com/Z3rrmRJ.jpg

~77

Sold for death by disco smokey sombrero (~70) + roughly 10 keys in sweets (prices were a bit higher when the sales occured)

http://backpack.tf/profiles/76561198172094942/#!/compare/1458111600/1458198000

thats ~80

Sold for MG goggles

http://backpack.tf/profiles/76561198172094942/#!/compare/1457424000/1457510400

http://backpack.tf/profiles/76561198018821240/#!/compare/1457510400/1457596800

Goggles resold for that searing tyro. This'll probably be low; happened short after the hype

Sold + c9 pusher for duped burning hallmark

http://backpack.tf/profiles/76561198010188541/#!/compare/1460505600/1460678400

Not really usable

Sold for ghosts tower (50) + miami razor cut (~41) + 5 keys ~96 (outlier)

http://backpack.tf/profiles/76561198010188541/#!/compare/1460678400/1460764800

Ghosts tower needs a mini; Ill look into that. Probably around 90

Sold + burning physician and mallard ballcap for a PE gibus

http://backpack.tf/profiles/76561198083581266/#!/compare/1460505600/1460592000

Could be used for gibus

Sold + mallard ballcap and a couple of keys for StatTrak™ ★ Gut Knife | Doppler

http://www.tf2outpost.com/item/730,5568326000,506,3

http://backpack.tf/profiles/76561198119568075/#!/compare/1458864000/1459209600

Probably best not to use that; the knife had a special color and stuff, which makes it really hard to appraise (Im not that knowledgable in csgo)

Sold + max and stormy western for Sulph tyrannus

http://backpack.tf/profiles/76561198083566339/#!/compare/1459814400/1460160000

Should not be used, the inexperienced seller likely didnt know about the allclass hype

Seems to have sold for blizz cotton?

http://backpack.tf/profiles/76561198144377252/#!/compare/1457078400/1459123200

not sure bout this one, can probably ask Cashew to confirm

http://backpack.tf/profiles/76561198080250669/#!/compare/1459814400/1460160000

I sold my unusual Cotton Head for 4 keys + Ancient Codex Universal Translator(16) + Flaming Lantern Pugilist Protector(19) + Bubbling Black Watch(18) + Terror Watt Hat to Kill (30)

~87

Mini for Black Watch: http://backpack.tf/profiles/76561198070151387/#!/compare/1457251200/1457424000

Sold for a Bubbling Trilby + Bill's= 18 keys

http://www.tf2outpost.com/trade/28088621 B/O 90 proves >90 is outlier.