Not that outdated, but its price is from before the all-class update.

Sale 1

Sold for a Cloud 9 Provocateur (mini at 19.5) + Planets Goggles (mini at 12.5) + Planets Swagman (15) + KaW Pipe (11)

http://backpack.tf/profiles/76561198026577539#!/compare/1471651200/1471737600

http://www.tf2outpost.com/trade/28421585 ----- No B/O

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Mini for the Provocateur: Sold for a MHP HFoHA (18.5) + 1 key

http://backpack.tf/profiles/76561198148540751#!/compare/1472428800/1472688000

Mini for the Goggles: Can't find a valid sale. Taking mid-range between the seller at 15, and the buyer at 10

http://imgur.com/a/HHqDk

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=======> 19.5 + 12.5 + 16 + 11 = 59 keys

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Sale 2

Sold with a Strange PKS Original (mini at 11) for a Scorching Guadalajara (mini at 72)

http://backpack.tf/profiles/76561198068127299#!/compare/1469577600/1469664000

http://www.tf2outpost.com/trade/28363392 ----- B/O was 70

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Mini for the Guad: Sold for a Searing Trib (micro at 35) + Vivid Trilby (micro at 33) + 4 keys

http://backpack.tf/profiles/76561198069493147#!/compare/1470096000/1470182400

http://www.tf2outpost.com/trade/28386340 ----- No B/O

Micro for the Trib: Can't find a valid sale. It was quicksold to Scrap.tf for 30 keys + a few refs. There is a current seller for 40, so i will take mid-range (35)

http://backpack.tf/profiles/76561197998157758#!/compare/1470960000/1471046400

http://www.tf2outpost.com/trade/28462553

Micro for the Trilby: Sold for 33 keys

http://backpack.tf/profiles/76561198072923616#!/compare/1470268800/1470355200

http://www.tf2outpost.com/trade/28343268 ----- Wasn't a quicksale

Mini for the Original: Sellers for ~11, taking 11

http://imgur.com/a/Qr9uW

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=======> (35 + 33 + 4) - 11 = 61 keys

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Sellers

- http://www.tf2outpost.com/trade/28440671 ----- 80 keys

- http://www.tf2outpost.com/trade/28454119 ----- No B/O

Summary

- Sales for 59, 61

Going with 59-61 keys. Criticism appreciated!