Turns out I didn't really need to re-suggest :P

Sale 1:

Sold for Power Surge Voodoo JuJu (40) + 9 keys

http://www.tf2outpost.com/trade/28503107 - No B/O

Seller: http://backpack.tf/profiles/76561198196627443#!/compare/1474675200/1474761600

Buyer: http://backpack.tf/profiles/76561198286234945#!/compare/1474675200/1474761600

X = 49

Sale 2:

Sold for Peace Sign Napper’s (Mini at 20.5 below) + Kill-a-Watt Flamenco (27.5)

No outpost

Seller: http://backpack.tf/profiles/76561198204824055#!/compare/1475712000/1475798400

Buyer: http://backpack.tf/profiles/76561198084976847#!/compare/1475366400/1475798400

X = 48

Sale 3:

Sold for Duped Scorching Nanobalaclava (Mini at 41 below)

http://www.tf2outpost.com/trade/28507890 - B/O of 43

Seller: http://backpack.tf/profiles/76561198286234945#!/compare/1474848000/1475020800

Buyer: http://backpack.tf/profiles/76561198217100151#!/compare/1474934400/1475020800

X = 41

Sale 4:

Sold for Circling Heart Attendant + 2 keys

http://www.tf2outpost.com/trade/28584305 - B/O of 50, re-listed once after this with deleted B/O

Seller: http://backpack.tf/profiles/76561198121830870#!/compare/1478476800/1478563200

Buyer: http://backpack.tf/profiles/76561198080107978#!/compare/1478476800/1478563200

Sale is being used to update the Attendant

Peace Sign Napper’s Mini:

http://backpack.tf/suggestion/582e584a83de6b284b1679cd

Duped Scorching Nano Mini:

Sold for 40 keys + 0.5 in item

http://www.tf2outpost.com/trade/28513297 - No B/O

Seller: http://backpack.tf/profiles/76561198286234945#!/compare/1475280000/1475366400

Buyer: http://backpack.tf/profiles/76561198107949914#!/compare/1473811200/1475366400

X = 41

Sellers:

50 keys:

http://i.imgur.com/eWG6J4b.png - 20 days

http://backpack.tf/u/76561198056793444

http://www.tf2outpost.com/trade/28577516

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

http://backpack.tf/u/76561198086948995

http://i.imgur.com/v8T7wsB.png

http://www.tf2outpost.com/trade/28558860

http://backpack.tf/u/76561198051032766

Sales at:

41

48

49

Sale at 41 looks like a bit of an outlier, and it sold in a little less than a week. Excluding 41

Going with 48-49