This sale is in-date too:

https://backpack.tf/profiles/76561198077490243#!/compare/1620259200/1620345600

https://backpack.tf/profiles/76561198120797495#!/compare/1620259200/1620432000

Seems to be untraceable, your suggestion is good :)

There's another sale on mannco for $95 (~53 keys). Buyers don't counter as they went above 53 like two days ago, so this will need a range.

Bought this for 63 pure: https://backpack.tf/profiles/76561198054198170#!/compare/1628294400/1628380800

https://imgur.com/a/0oMUPyp

Other recent sale seems to be bulk for a verdant vortex blast defense:

https://backpack.tf/profiles/76561197971174166#!/compare/1627776000/1627948800

(compares from squids inventory untraceable for both trades.)