Sale 1:

Sold with Genuine Pro. KS Ham Shank (~2) for Blizzardy Storm Pyro’s Beanie (14.5)

http://www.tf2outpost.com/trade/28847566 - B/O of 14

Seller: http://backpack.tf/profiles/76561198078873266#!/compare/1490486400/1490572800

Buyer: http://backpack.tf/profiles/76561198281338777#!/compare/1490486400/1490572800

X = 13

Sale 2:

Sold for Blizzardy Storm Waxy Wayfinder (Mini at 13 below)

http://www.tf2outpost.com/trade/28828372 - B/O of 13

Seller: http://backpack.tf/profiles/76561198041219518#!/compare/1490140800/1490313600

Buyer: http://backpack.tf/profiles/76561198078873266#!/compare/1490227200/1490313600

X = 13

Sale 3:

Sold for Steaming Baron Von Havenaplane

No outpost

Seller: http://backpack.tf/profiles/76561198281338777#!/compare/1490486400/1490572800

Buyer: http://backpack.tf/profiles/76561198296957157#!/compare/1490486400/1490572800

Probably better to use on the Baron, due to lack of B/O here. May end up being a high outlier otherwise.

Sale 4:

Sold for Orbiting Planets Buckaroos hat + 1 key + Strange Spec. KS Degreaser w/ parts and Halloween fire (<1.5)

http://www.tf2outpost.com/trade/29219688 - B/O of 13

Seller: http://backpack.tf/profiles/76561198050933686#!/compare/1496966400/1497225600

Buyer: http://backpack.tf/profiles/76561198049000830#!/compare/1496361600/1497225600

Degreaser has a seller with better parts and an extra spell for slightly less than 1.5 keys:

http://i.imgur.com/gnpBNHc.jpg

Would be safe to assume that the degreaser in this sale will end up being cheaper.

No valid sales on the Buckaroo’s hat, though it’d be safe to assume that this sale will end up being around 12 keys.

Sale 5:

Bulk for Pro. KS Aussie Scattergun

Seller: http://backpack.tf/profiles/76561198106506949#!/compare/1490572800/1490659200

Buyer: http://backpack.tf/profiles/76561198093501381#!/compare/1490572800/1490659200

Blizzardy Storm Waxy Mini:

http://backpack.tf/suggestion/593ff8f9e3387724175ef754

Sellers:

12 keys:

http://i.imgur.com/xUISeXL.png - 2 months

http://backpack.tf/u/76561198076020691

12.35 keys:

http://i.imgur.com/VNXWKhD.png - 2 months

http://backpack.tf/u/76561198061836787

13 keys:

http://i.imgur.com/fdjOyRl.png - 9 days

http://backpack.tf/u/76561198050933686

http://www.tf2outpost.com/trade/29219688

14 keys:

http://i.imgur.com/m0epvkK.png - 4 months

http://backpack.tf/u/76561198061376237

http://www.tf2outpost.com/trade/29198963

http://www.tf2outpost.com/trade/29225752 - young

http://backpack.tf/u/76561198049000830

17 keys:

http://i.imgur.com/Frt5cw8.png - 6 months

http://backpack.tf/u/76561198021272428

http://www.tf2outpost.com/trade/29216579

Sales at:

13 (2x)

Ages sellers at 12.

Going with 12-13.