Resuggestion.

Thanks to K1NG for the info!

Sale 1:

https://backpack.tf/profiles/76561198057028952#!/compare/1524009600/1524096000

https://backpack.tf/profiles/76561198232041512#!/compare/1524009600/1524096000

Bulk

Sale 2:

https://backpack.tf/profiles/76561198232041512#!/compare/1524787200/1524873600

https://backpack.tf/profiles/76561198308672665#!/compare/1524873600/1524960000

Sold for Isotope MW Corsair Scattergun

Scatter Mini:

https://backpack.tf/profiles/76561198232041512#!/compare/1525392000/1525478400

https://backpack.tf/profiles/76561198089675316#!/compare/1525392000/1525478400

Sold for Stormy Hot Dogger + MW Jack(7.5) + Miami Bear(17)

Dogger Micro:

https://marketplace.tf/items/614;5;u29

Sold for ~21 keys

https://backpack.tf/profiles/76561198008720570#!/compare/1523923200/1524096000

https://backpack.tf/profiles/76561197994958786#!/compare/1507248000/1524787200

Sold for ~17 keys in items

Considering seller at 16, taking 16 - 17 keys.

Total is 17 + 16.5 + 7.5 = 41 keys

K1NG's Part:

The Scattergun had a B/O of 40 in your mini

http://www.tf2outpost.com/trade/29640401

Another GL sale: sold for a Smoking Crone's (48)

https://backpack.tf/profiles/76561198308245489#!/compare/1532044800/1532131200

https://backpack.tf/profiles/76561198074924284#!/compare/1531958400/1532044800

40-48 should work.

Taking 40 - 48 keys.