Resuggesting due to recent sales.

Only usable sale from the previous suggestion:

Seller: https://backpack.tf/profiles/76561198418740133#!/compare/1562889600/1562976000

Buyer: https://backpack.tf/profiles/76561198072886956#!/compare/1562803200/1562976000

Sold for:

6 keys

2 Pro KS Sniper Rifle Kits - 26 keys

Non-Craftable Spine-Chilling Skull - 2.75 keys

Sweets - ~2.25 keys

Total = 37 keys

New Sales (Credit to Shuffle Spy. Thanks lad.):

https://backpack.tf/profiles/76561198335791307#!/compare/1568505600/1568592000 - Sold for 45 Keys

https://backpack.tf/profiles/76561198114402400#!/compare/1568419200/1568505600 - Sold for a Sunbeams Crack Pot + 4 Keys + 3.5 Keys of Items

Crack Pot has these sales:

https://backpack.tf/profiles/76561198067728052#!/compare/1565740800/1565913600 - Starstorm Insomnia Coldsnap Cap

https://backpack.tf/profiles/76561198038840155#!/compare/1566086400/1568246400 - 32 Keys

https://marketplace.tf/items/tf2/31024;5;u17 - $69 when Keys were $1.83 (38 Keys)

https://backpack.tf/profiles/76561198037693798#!/compare/1568678400/1569283200 - Not all 30 Keys match, so idk

https://backpack.tf/profiles/76561198039834209#!/compare/1567209600/1567296000 - Bulk

https://backpack.tf/profiles/76561198141375761#!/compare/1567296000/1567382400 - Bulk

https://backpack.tf/profiles/76561198031126990#!/compare/1568851200/1568937600 - Bulk

https://backpack.tf/profiles/76561198093561406#!/compare/1569369600/1569456000 - Bulk (everything here was the trade)

https://backpack.tf/profiles/76561198332869276#!/compare/1570579200/1570665600 - Better for the Flame

https://backpack.tf/profiles/76561198096447036#!/compare/1570924800/1571011200 - Better for the Lumbricus

Taking 37-45 keys.