http://forums.backpack.tf/index.php?/statuses/user/6534-%E2%99%A5prof-sugarcube%E2%84%A2%E2%99%A5-x-%E2%99%A5sel%E2%99%A5/?status_id=385257

Credit to sugarcube

Sale 1

http://www.tf2outpost.com/trade/27977816 Sold for Spec KS Aussie Scatter

B/O for Conq was 55

B/O for Scatter was 40

Conq was offered

X = 38

Scatter http://backpack.tf/item/4577978018

Conq http://backpack.tf/item/1921571778

Trade http://backpack.tf/profiles/76561198146222816/#!/compare/1460073600/1460160000

Sale 2

http://www.tf2outpost.com/trade/27865639 Sold for Duped 13th Fez

B/O for Fez was 55

Conq had no trade

X = 45

Fez http://backpack.tf/item/1198288858

Conq http://backpack.tf/item/932372046

Trade http://backpack.tf/profiles/76561198002757046/#!/compare/1455955200/1456041600

Mini for Fez

[No OP Trade] Sold for 45 keys

X = 45

Keys http://backpack.tf/profiles/76561198002757046/#!/compare/1456560000/1456646400

Fez http://backpack.tf/item/1198288858

Sale 3 OUTLIER

http://backpack.tf/profiles/76561198125791160/#!/compare/1460332800/1460419200 Smoking Brainiac's + Twatt Lucha ~70-80

Sale 4

http://backpack.tf/profiles/76561198076020691/#!/compare/1454140800/1454227200 Spec KS Aussie Wrench + Bill's, low

Credit to mindacos

Sold for a Burning Flames Bonk Leadwear(52.5 Keys) and a Stormy Storm Sober Stuntman(~12.5 Keys)(65 Keys total)

http://backpack.tf/profiles/76561198119666999#!/compare/1459468800/1459555200

http://backpack.tf/item/932372046

Sold for a Haunted Ghosts Rather Festive Tree(54 Keys)

http://backpack.tf/profiles/76561198125791160#!/compare/1459555200/1459641600

On the Smoking Brainiac(33 Keys) + Terror-Watt Lucha(37.5 Keys, rounding to 38) sale(71 Keys total), the B/O was 55

http://www.tf2outpost.com/trade/28037684

Sold for a Blizzardy Storm Galvanized Gibus(55 Keys) and a Genuine Pro KS Original(~7 Keys)(62 Keys total)(B/O was 60)

http://backpack.tf/profiles/76561198192602363#!/compare/1457769600/1457856000

http://www.tf2outpost.com/trade/27902375

Sold for a Vivid Plasma Berlin Brain Bowl(~42 Keys), a Dead Presidents Shooter's Sola Topi(~11.5 Keys, rounding to 12)) and a Strange C.A.P.P.E.R(8 Keys)(~62 Keys total)

http://backpack.tf/profiles/76561198082533621#!/compare/1462924800/1463011200

Considering that the 13th fez and aussie wrench sales are now outdated, 38 for this seems really low. I'd probably go with 54-65 here.