https://marketplace.tf/items/150;5;u63

39 keys

https://backpack.tf/profiles/76561198150783829#!/compare/1525651200/1525737600

?

https://backpack.tf/profiles/76561198134407457#!/compare/1525737600/1525824000

27 keys + G.fetti Lucky Shot (14) + ~key in skins = 42 keys

Fruit Shot mini (I'll use my own sales cause I'm too lazy to search for one):

My bought is slightly outdated (somewhere in the beginning of March).

Sold it 27 of March, fine to use as a mini: https://imgur.com/a/s7zOSXj - SSS + 1.5 key (was 1.5 on the time of trade) = 14 keys

Mini for SSS: https://imgur.com/a/NRIlxia - added 6.5 keys for Amassment = 12.5 keys

Mini for Amassment: https://imgur.com/a/q0vkUSd - added 3 keys for Cannonball = 19 keys

Mini for Cannonball: https://imgur.com/Dva8W6y - sale at ~23, buyout was 22: http://www.tf2outpost.com/trade/29664187

https://backpack.tf/profiles/76561198068235514#!/compare/1525824000/1525910400

Not usable

https://backpack.tf/profiles/76561198030343929#!/compare/1528502400/1528588800

Flies Stove (11.5) + SS Stove (11.5) + DBD Stove (29) + PKS Hot Hand (6 keys) = 58 keys, no b/o

Hot Hand:

https://steamcommunity.com/market/listings/440/Professional%20Killstreak%20Hot%20Hand - some sales around 6 keys

Flies Stove:

https://marketplace.tf/items/120;5;u12 - sale at 11.5 keys

SS Stove

https://marketplace.tf/items/120;5;u29 - 11 keys

https://backpack.tf/profiles/76561198094666113#!/compare/1527120000/1527206400 - 12 keys

DBD Stove:

https://marketplace.tf/items/120;5;u62 - sale at 29

Summary

58 keys sale looks like an outlier here, there was a b/o but requiem deleted it