Resuggestion, Thanks to Foamy, Mucy & Gilbert for the info!

Sale 1:

https://backpack.tf/profiles/76561198212319231#!/compare/1534896000/1537488000

https://backpack.tf/profiles/76561198150653454#!/compare/1535500800/1536796800

Looks like it was for the KaW Hong Kong? Low

Sale 2:

https://backpack.tf/profiles/76561198148511293#!/compare/1538697600/1538784000

https://backpack.tf/profiles/76561198348883641#!/compare/1538697600/1538784000

Sold for Roboactive Reggae

Use there.

Sale 3:

https://backpack.tf/profiles/76561198060153957#!/compare/1534636800/1534723200

https://backpack.tf/profiles/76561198094964657#!/compare/1534636800/1534723200

Sold for 100 keys

Sale 4:

https://backpack.tf/profiles/76561198094964657#!/compare/1535587200/1535673600

https://backpack.tf/profiles/76561198019854682#!/compare/1535587200/1535673600

Sold for 110 keys

Sale 5:

https://backpack.tf/profiles/76561198019854682#!/compare/1537401600/1537488000

https://backpack.tf/profiles/76561198068516964#!/compare/1537401600/1537488000

Sold with PE Tyrant + 50 keys for GE Stash

use there.

Sale 6:

https://backpack.tf/profiles/76561198068516964#!/compare/1537488000/1537660800

https://backpack.tf/profiles/76561198109141608#!/compare/1537574400/1537660800

Sold for 135 keys

Sale 7:

https://backpack.tf/profiles/76561198109141608#!/compare/1537920000/1538006400

https://backpack.tf/profiles/76561198007900590#!/compare/1537920000/1538006400

Bulky?

Sale 8:

https://backpack.tf/profiles/76561198007900590#!/compare/1539648000/1539734400

https://backpack.tf/profiles/76561198309178418#!/compare/1539302400/1539734400

Sold with 10 keys for Subatomic Space Mann(107.5)

Total is 97.5 keys

Sale 9:

https://marketplace.tf/items/817;5;u13

Sold for 210 USD

Keys at 1.77 USD

Total is 118.64 keys

Sale 10(Thx Mucy):

Sold for 137 keys

https://backpack.tf/profiles/76561198112336424#!/compare/1535846400/1535932800

https://backpack.tf/profiles/76561198109141608#!/compare/1535500800/1535932800

Sale 11: (Thx Gilbert):

https://backpack.tf/profiles/76561198050414618#!/compare/1541980800/1542067200

Sold for a G Fetti Phantom + P Fetti Cosa + Grail Skullcracker(9.25) + FBA Russian + PBR Carlton + Phantasm Pipes + Blizzardy Puffy + ~28 keys in sweets

https://gyazo.com/8d43beab5e8ae85552d2858c6289e157

All minis:

https://backpack.tf/suggestion/5bebb66fcf6c75595a613a9e (Phantom at 27)

https://backpack.tf/suggestion/5bebbfc244325a3f5b052575 (Russian at 8)

https://backpack.tf/suggestion/5bebc7ba44325a3fa65628a1 (Carlton at 11)

https://backpack.tf/suggestion/5bebcb9acf6c75598f7ab6d4 (Pipes at 14)

https://backpack.tf/suggestion/5bebd6b9cf6c755a3e2b9f09 (Puffy at 14)

Cosa has no sales, taking outdated at 36.

Total is 147.25 keys

Sale 12:

https://gyazo.com/fe0b85171c3e595e0c8ed1b0a260068d

https://gyazo.com/ac01a7da3a88787063222362c8f259c7

Swap

Sale 13:

https://backpack.tf/profiles/76561198026360445#!/compare/1542758400/1543017600

https://backpack.tf/profiles/76561198073438708#!/compare/1542931200/1543017600

Untrace

Sale 14:

https://backpack.tf/profiles/76561198073438708#!/compare/1543276800/1543363200

https://backpack.tf/profiles/76561197964171516#!/compare/1543276800/1543363200

Untrace.... QS?

Sale 15:

https://backpack.tf/profiles/76561198042694990#!/compare/1543276800/1543363200

https://backpack.tf/profiles/76561197980575764#!/compare/1543276800/1543363200

Sold for MG Muffs + Blizzardy Pusher(29) + Blizzardy Luchadore(15.5)

https://backpack.tf/suggestion/5bfcbbb3cf6c75533323e4f1

Suggestion for 142.5 keys

Total is 187 keys

Sale 16:

https://backpack.tf/profiles/76561197980575764#!/compare/1543622400/1543881600

https://backpack.tf/profiles/76561198011321852#!/compare/1543795200/1543881600

Sold for Sulphrous Executioner

Use there.

Sale 17:

https://backpack.tf/profiles/76561198050414618#!/compare/1543881600/1543968000

https://backpack.tf/profiles/76561198011321852#!/compare/1543881600/1543968000

Sold for 83 keys

Sale 18:

https://backpack.tf/profiles/76561198053767371#!/compare/1542499200/1542844800

Backpack buy

Sale 19:

https://backpack.tf/profiles/76561198309178418#!/compare/1543276800/1543363200

Sold for 85 keys

Foamy's Part:

You could round the range to 100-145 keys.