Re-suggestion.

Thanks to Marty for the info!

https://marketplace.tf/items/538;5;u90

Unsold on Markeplace for a month at $480 USD, or roughly 242 keys.

Sale 1:

https://backpack.tf/profiles/76561198017901187#!/compare/1522022400/1522108800

https://backpack.tf/profiles/76561198084447725#!/compare/1522022400/1522108800

Sold for Scorching Samur-Eye(205) + 35 keys.

Total is 245 keys.

Sale 2:

https://backpack.tf/profiles/76561198084447725#!/compare/1522454400/1522540800

https://backpack.tf/stats/Unusual/Modest%20Pile%20of%20Hat/Tradable/Craftable/16

Sold for Phantasm Yellow Belt(170) + Vivid Modest(49) + Steaming Mmph

http://www.tf2outpost.com/trade/29601416

B/O of about 265 keys.

Mmph Mini:

https://backpack.tf/suggestion/5af5fa0dcf6c750e650ba8a6

Suggestion for 11.

Total is 170 + 49 + 11 = 230 keys

Sale 3:

https://backpack.tf/profiles/76561198139171368#!/compare/1524268800/1524441600

https://backpack.tf/profiles/76561198028171245#!/compare/1524268800/1524441600

Using there.

Sale 4:

https://backpack.tf/profiles/76561198028171245#!/compare/1525737600/1525910400

https://backpack.tf/profiles/76561198178088350#!/compare/1525824000/1525910400

Sold for 185 keys + Hot Flower Shotgun

Shot gun Mini:

https://backpack.tf/profiles/76561198112281935#!/compare/1524096000/1524182400

Sold for 21 keys + Pro KS Pistol(3)

Total is 24 keys.

Taking 209 keys.

Sales @:

209, 230, 245.

Seller on MP says that 240 could be an outlier, but 2 sales at that range don't support that.

Taking 210 - 250.

Marty's Part:

https://backpack.tf/profiles/76561198108938632#!/compare/1527897600/1528156800 - 220 pure

Also a young seller below your range now. I would include 210 as your low end.