I own a couple of these guys too

Item 1

https://backpack.tf/item/5187588375

Sale 1

https://mannco.store/item/21001

Mar 19th - $79.95 / $1.97 = 40.58 keys

Sale 2

https://gyazo.com/5a1290cb010f74894209e3ba71fe4831

Bulk

Item 2

https://backpack.tf/item/5186424998

Sale 3

https://backpack.tf/profiles/76561198176020335#!/compare/1615766400/1616112000

https://backpack.tf/profiles/76561198140124832#!/compare/1616025600/1616112000

Bulk for Death at Dusk Minnesota Slick

Sale 4

https://backpack.tf/profiles/76561198140124832#!/compare/1616284800/1616371200

https://backpack.tf/profiles/76561198312007577#!/compare/1616284800/1616371200

Added:

11 keys

for

Vicious Vortex Universal Translator

Probably use there

Sale 5

https://backpack.tf/profiles/76561198312007577#!/compare/1616371200/1616457600

https://backpack.tf/profiles/76561198282873040#!/compare/1616371200/1616457600

Keys, untrace

Sale 6

https://backpack.tf/profiles/76561198282873040#!/compare/1616716800/1616803200

https://backpack.tf/profiles/76561198056336908#!/compare/1616716800/1616803200

Sold for:

Purple Energy Aztec Aggressor - https://backpack.tf/suggestion/60a2b4638cc74d10fd72bf75 - 43.5 keys

4 keys

43.5 + 4 = 47.5 keys

https://gladiator.tf/listings/605e4f4a2d833e802e8692c6 - 55 key buyout

Taking as 48 keys here

Sale 7

https://backpack.tf/profiles/76561198056336908#!/compare/1616889600/1616976000

https://backpack.tf/profiles/76561198839259306#!/compare/1616716800/1616889600

It would appear sold for 38 keys

Sale 8

https://backpack.tf/profiles/76561198839259306#!/compare/1616976000/1617408000

https://backpack.tf/profiles/76561198934324891#!/compare/1617235200/1617408000

Sold for 40 keys

Sale 9

https://backpack.tf/profiles/76561198934324891#!/compare/1617408000/1617494400

https://backpack.tf/profiles/76561198244409420#!/compare/1617321600/1617408000

Resold for 40 keys

Sale 10

https://backpack.tf/profiles/76561198244409420#!/compare/1619913600/1620000000

https://backpack.tf/profiles/76561198986285600#!/compare/1619827200/1620000000

Bulky for 86 keys

Sale 11

https://backpack.tf/profiles/76561198986285600#!/compare/1620000000/1620864000

https://backpack.tf/profiles/76561199084784906#!/compare/1619913600/1620000000

Untrace

Sale 12

https://backpack.tf/profiles/76561199084784906#!/compare/1620777600/1620864000

https://backpack.tf/profiles/76561198799601783#!/compare/1620777600/1620950400

Untrace

Sale 13

https://backpack.tf/profiles/76561198799601783#!/compare/1620950400/1621036800

https://backpack.tf/profiles/76561198253093948#!/compare/1620950400/1621036800

https://gyazo.com/5131acf8c655d43d91bfa96f740e7dda

2 sold for 88 keys

Taking as 44 keys here

Item 3

https://backpack.tf/item/5192535971

Sale 14

https://backpack.tf/profiles/76561198040220388#!/compare/1619568000/1619740800

https://backpack.tf/profiles/76561198377803935#!/compare/1619568000/1619654400

Untrace

Sale 15

https://backpack.tf/profiles/76561198377803935#!/compare/1619654400/1619827200

https://backpack.tf/profiles/76561198066220061#!/compare/1619740800/1619827200

Sold for 45 keys

Sale 16

https://backpack.tf/profiles/76561198066220061#!/compare/1620864000/1620950400

https://backpack.tf/profiles/76561198799601783#!/compare/1620777600/1620950400

Sold for 43 keys

Sale 17

Same as Sale 13 here

Sales

41

48

38

40

40

44

45

43

44

Sales but ordered

38, 40, 40, 41, 43, 44, 44, 45, 48

48 dumped for 38 keys, 45 dumped for 43 keys.

Going with 40 - 44 keys here

I just sold one of mine for 60 keys pure.

Going to hold off changing the range here since it's a bit of an outlier from the rest of the sales here:

https://prnt.sc/132py2c