Mini.

Sale: https://backpack.tf/profiles/76561198055622215#!/compare/1581206400/1581379200

https://backpack.tf/profiles/76561198067893369#!/compare/1580860800/1581379200

Sold with a Orbiting Fire Gentleman's Ushanka (16 keys) for a clean Terror-Watt Crone's Dome (61 keys)

61 - 16 = 45

Mini for the Crones (credits to Jamal, he will post the sugg once he free from work):

https://backpack.tf/item/8187176196

https://backpack.tf/profiles/76561198089878912#!/compare/1578096000/1578268800

https://backpack.tf/profiles/76561198033661509#!/compare/1578182400/1578268800

Sold with ? keys for SL Beenie = Use there

$77.78 / $1.76 = 44.19 keys

$100.00 / 1.78 = 56 keys

https://backpack.tf/item/7956246839

https://backpack.tf/profiles/76561198067893369#!/compare/1580428800/1580688000

https://backpack.tf/profiles/76561198038666068#!/compare/1580515200/1580688000

Use there

https://backpack.tf/item/7956160921

https://backpack.tf/profiles/76561198115721685#!/compare/1582502400/1582848000

https://backpack.tf/profiles/76561198101498111#!/compare/1582761600/1582848000

Sold for SL Beenie (56 keys) + Vivid Backbiter Cock (17 keys)

56 + 17 = 73, buyout was 65: https://bot.tf/stats/listings/4RG82JEE

Mini for the Billy: https://backpack.tf/suggestion/5e5aff34295daa3dfa68c59b

https://backpack.tf/profiles/76561198084379901#!/compare/1575504000/1575676800

https://backpack.tf/profiles/76561198086948995#!/compare/1575504000/1575676800

Bulk

https://backpack.tf/profiles/76561198148511293#!/compare/1577664000/1577750400

https://backpack.tf/profiles/76561198834188334#!/compare/1582243200/1582329600

Use there

https://backpack.tf/profiles/76561198055224435#!/compare/1582329600/1582416000

https://backpack.tf/profiles/76561198834188334#!/compare/1582329600/1582416000

Use there

Sales: 44, 56 and 65. Classies: https://i.imgur.com/lUzoWyB.png. Taking 56-65.

Mini for the Ushanka (credits to Scourge, this won't be able to be updated atm, but using here as a non-sugg mini):

Sale 1:

https://backpack.tf/profiles/76561198075728504#!/compare/1581379200/1581465600

https://backpack.tf/profiles/76561198337734785#!/compare/1581292800/1581379200

QS

sale 2:

https://backpack.tf/profiles/76561198125262581#!/compare/1580256000/1580774400

https://backpack.tf/profiles/76561198095862827#!/compare/1580256000/1580342400

Untrace

Sale 3:

https://backpack.tf/profiles/76561198228031308#!/compare/1580947200/1581033600

https://backpack.tf/profiles/76561198125791160#!/compare/1581638400/1581724800

Untrace

Sale 4:

https://backpack.tf/profiles/76561198096734571#!/compare/1578614400/1578700800

https://backpack.tf/profiles/76561198330581869#!/compare/1578614400/1578700800

Sold for Swirl Sorcery

buyers at 15, would end up high.

https://bot.tf/stats/listings/M178XQDX

B/O of 17 keys

Sale 5:

https://backpack.tf/profiles/76561198330581869#!/compare/1578700800/1578787200

https://backpack.tf/profiles/76561198381033764#!/compare/1578441600/1578787200

Sold for Blizzardy Crack + Neutron Wing Mann

Crack Mini:

https://backpack.tf/suggestion/5e5ae323f40c134ab74aa0bd

Suggestion for 9 keys

at buyers, wingmann would end up keeping the sale above Ushanka unsolds.

https://bot.tf/stats/listings/4OVEXEEJ

B/O of 21 keys

Sale 6:

https://backpack.tf/profiles/76561198381033764#!/compare/1579305600/1579392000

https://backpack.tf/profiles/76561198331398297#!/compare/1579219200/1579305600

Bulk / untrace

Sale 7:

https://backpack.tf/profiles/76561198331398297#!/compare/1579219200/1579305600

https://backpack.tf/profiles/76561198038796271#!/compare/1579305600/1579392000

Sold with ~1 key in sweets for 20 keys

Total is 19 keys

Sale 8:

https://backpack.tf/profiles/76561198055622215#!/compare/1581206400/1581379200

https://backpack.tf/profiles/76561198067893369#!/compare/1580860800/1581379200

Bulk

sale 9, 10:

https://marketplace.tf/items/tf2/778;5;u33

$20 / $1.79 = 11.17 keys <--- https://backpack.tf/item/1609491486

$15.11 / $1.76 = 8.59 keys

Unsolds: https://i.imgur.com/pTzbme3.png. Taking 15-17.

Classies: https://i.imgur.com/kh2FOlL.png. 45 flat.