Sale 1:

Sold for Bubbling Elfin Deal (mini at 13 below) + ~1 key in items/metal

No outpost

Seller: http://backpack.tf/profiles/76561198254822867#!/compare/1479254400/1479340800

Buyer: http://backpack.tf/profiles/76561198257257887#!/compare/1479081600/1479254400

X = 14

Sale 2:

Sold for Smoking Gym Rat (Mini at 10 below) + ~2 keys (realistically) in painted items/other

http://www.tf2outpost.com/trade/28592024 - B/O of 12

Seller: http://backpack.tf/profiles/76561198253476532#!/compare/1478822400/1478908800

Buyer: http://backpack.tf/profiles/76561198151567950#!/compare/1478649600/1478908800

X = 12

Sale 3:

Sold for Miami Nights Janissary Ketche (Mini at 12)

http://www.tf2outpost.com/trade/28557411 - Deleted B/O

Seller: http://backpack.tf/profiles/76561198019556015#!/compare/1477958400/1478044800

Buyer: http://backpack.tf/profiles/76561198091576511#!/compare/1478044800/1478649600

X = 12

Sale 4:

Sold for Nuts n Bolts Bootleg Base Metal Billycock (Mini at 10 below) + 1 key

No outpost

Seller: http://backpack.tf/profiles/76561198061440669#!/compare/1483920000/1484006400

Buyer: http://backpack.tf/profiles/76561198077355485#!/compare/1484006400/1484092800

X = 11

Sale 5:

Sold for 4 keys + ~5 keys in items

Seller: http://backpack.tf/profiles/76561198118090662#!/compare/1483056000/1483142400

Buyer: http://backpack.tf/profiles/76561198112001162#!/compare/1483142400/1484438400

X = 9

Sale 6:

Sold for 9 keys

No outpost

Seller: http://backpack.tf/profiles/76561198257257887#!/compare/1479686400/1479772800

Buyer: http://backpack.tf/profiles/76561198020674825#!/compare/1479686400/1479772800

X = 9

Sale 7:

Sold for 9 keys

No outpost

Seller: http://backpack.tf/profiles/76561198346917129#!/compare/1483056000/1483142400

Buyer: http://backpack.tf/profiles/76561198158657801#!/compare/1482624000/1483142400

X = 9

Sale 8:

Sold with ~3 keys in items for Aussie Tomislav (12)

No outpost

Seller: http://backpack.tf/profiles/76561198091576511#!/compare/1478649600/1479168000

Buyer: http://backpack.tf/profiles/76561198002757046#!/compare/1478995200/1479081600

X = 9

Bubbling Elf Mini

Sold for Pro. KS Aussie Frontier Justice (~13.5)

No outpost

Seller: http://backpack.tf/profiles/76561198166667650#!/compare/1480896000/1481241600

Buyer: http://backpack.tf/profiles/76561198258020635#!/compare/1481068800/1481155200

Rounding down to 13 to be safe, as there is a bit of the gap between the frontier justice’s sellers and buyers.

X = 13

Only non-quicksell I could find

Smoking Gym Rat Mini:

http://backpack.tf/suggestion/588c9837e33877240153ea5f

Nuts n Bolts Bootleg Mini:

http://backpack.tf/suggestion/588c9998e3387735eb6d69b1

Buyer at 9 keys:

[u]Sales at:

9 (4x)

11

12 (2x)

14

9 is countered by buyers. Excluding 9.

Going to exclude 14 for two reasons:

1 - B/O’s seem to range around 11-12, and so do the sales.

2 – The mini for the sale at 14 is arse.

Going with 11-12