Sale 1: 100 Keys

https://backpack.tf/profiles/76561198085628805#!/compare/1558310400/1559088000

https://backpack.tf/profiles/76561198115074140#!/compare/1558915200/1559088000 (This one is wacky)

Sale 2: Upgrade with a Misty Skull Masters Yellow Belt for a Phosphorous Crones. (No minis available on the crones and the bonk is worth less than 50% of the trade).

Sale 3: Looks like 70 Keys (Low, Buyers are now higher than that)

https://backpack.tf/profiles/76561198113321588#!/compare/1554508800/1555372800

https://backpack.tf/profiles/76561198157176919#!/compare/1555200000/1555372800

Sale 4: Untrace

https://backpack.tf/profiles/76561198113321588#!/compare/1552867200/1553990400

https://backpack.tf/profiles/76561198131633162#!/compare/1553731200/1553904000

Going with 100 Keys Flat. This is my second suggestion so please leave constructive comments below.

Another sale @ 100

https://backpack.tf/profiles/76561198115074140#!/compare/1559260800/1559433600

https://backpack.tf/profiles/76561198109986831#!/compare/1559260800/1559433600

Another sale. https://backpack.tf/profiles/76561198109986831#!/compare/1559692800/1559779200. Unusable. Gambled items.