Re-suggesting.

Sale 1: – Credit to Moose

Sold for 50 keys

No outpost

Seller - http://backpack.tf/profiles/76561198090956917#!/compare/1491004800/1491091200

Buyer - http://backpack.tf/profiles/76561198041325085#!/compare/1490572800/1491177600

X = 50

Sale 2:

Sold for Scorching Nanobalaclava (Mini at 45 below) + Strange Weight Room Warmer (3)

http://www.tf2outpost.com/trade/28691591 - B/O of 50, seller confirms sale (legend)

Seller: http://backpack.tf/profiles/76561198092173139#!/compare/1484265600/1484352000

Buyer: http://backpack.tf/profiles/76561198334443004#!/compare/1484265600/1484352000

X = 48

Sale 3:

Sold for 46 keys

http://www.tf2outpost.com/trade/28718267 - B/O of 47

Seller: http://backpack.tf/profiles/76561198096305942#!/compare/1484352000/1489363200

Buyer: http://backpack.tf/profiles/76561198105462873#!/compare/1489104000/1489363200

X = 46

Sale 4:

Quicksold for 36 keys

http://www.tf2outpost.com/trade/28831462 - B/O of 38

Seller: http://backpack.tf/profiles/76561198105462873#!/compare/1489363200/1489449600

Buyer: http://backpack.tf/profiles/76561198153088409#!/compare/1489363200/1489449600

X = 36

Sale 5:

Bulk for Bonzo Cotton

Seller: http://backpack.tf/profiles/76561198153088409#!/compare/1489795200/1489881600

Buyer: http://backpack.tf/profiles/76561198145896898#!/compare/1489708800/1489881600

Sale 6:

Bulk for Frostbite Bonk Boy

Seller: http://backpack.tf/profiles/76561198145896898#!/compare/1490659200/1490745600

Buyer: http://backpack.tf/profiles/76561198056531196#!/compare/1490659200/1490745600

Sale 7:

Bulk for Time Warp Rack

Seller: http://backpack.tf/profiles/76561198056531196#!/compare/1490659200/1490745600

Buyer: http://backpack.tf/profiles/76561197995194055#!/compare/1490659200/1490745600

Sale 8:

Sold with Aussie Sniper Rifle (27 at the time) for Haunted Ghosts Noir + Orbiting Planets Glengarry Bonnet + Orbiting Planets Tyrant’s Helmet + Nuts n’ Bolts Baker Boy

No outpost

Seller: http://backpack.tf/profiles/76561198136469690#!/compare/1485734400/1487376000

Buyer: http://backpack.tf/profiles/76561198112612121#!/compare/1486857600/1486944000

Kinda bulky sale, probably better to not use it.

Scorching Nano Mini:

http://backpack.tf/suggestion/58e4e314c440450d4e549fe2

Sellers:

47 keys:

http://backpack.tf/u/76561198078827096 - Marketplace (going with $2.1 per key)

https://marketplace.tf/items/393;5;u36

50 keys:

http://i.imgur.com/mPNUFxJ.png

http://backpack.tf/u/76561198112612121

Sales at:

36

46

48

50

36 quicksold, excluding 36.

Going with 46-50.