Sales 3 and 4 are outdated (over 3 months old) and can't be used.

Additonally, since the Zapateador is unpriced and the Rocket and Cold Killer are outdated, you need to price those before pricing this.

Cold Killer sales...

https://backpack.tf/profiles/76561198305494036#!/compare/1587772800/1587859200 - ?

https://backpack.tf/profiles/76561198800776268#!/compare/1587859200/1587945600 - ?

https://backpack.tf/profiles/76561198335791307#!/compare/1587945600/1588032000 - ?

https://backpack.tf/profiles/76561198454615761#!/compare/1584230400/1584316800 - ?

https://backpack.tf/profiles/76561198831322170#!/compare/1588377600/1588464000 - ?

https://backpack.tf/profiles/76561198097427947#!/compare/1586390400/1586476800 - ?

https://backpack.tf/profiles/76561198796395930#!/compare/1586736000/1586822400 - Bulk

https://backpack.tf/profiles/76561198396499936#!/compare/1586822400/1586908800 - 20 Keys + random items

https://backpack.tf/profiles/76561198241082898#!/compare/1587340800/1587427200 - Bulk sale

https://backpack.tf/profiles/76561198271915998#!/compare/1587427200/1587600000 - Neutron Star Toy Soldier + 5 Keys

https://backpack.tf/profiles/76561198081289509#!/compare/1587600000/1587686400 - 16 Keys + Steaming Soldier's Slope Scopers

https://backpack.tf/profiles/76561199019555004#!/compare/1587686400/1587772800 - ?

https://marketplace.tf/items/tf2/981;5;u58 - Sold for $35 (21 Keys), $28.01 (low), $42.49 x2 (25 Keys), $39.99 (22 Keys), $49.95 (27 Keys), and $61.67 (high)

You'll need to look into the Toy Soldier and Scopers to see what values they come out to be.

Rocket sales...

https://backpack.tf/profiles/76561198011321852#!/compare/1589241600/1589328000 - ?

https://backpack.tf/profiles/76561198171126891#!/compare/1585699200/1585958400 - ?

https://backpack.tf/profiles/76561198148511293#!/compare/1587686400/1587772800 - Aussie Wrench (~37 Keys) + Midnight Whirlwind Conga

https://backpack.tf/profiles/76561198139507085#!/compare/1587772800/1587859200 - ?

https://backpack.tf/profiles/76561198859721638#!/compare/1588377600/1588464000 - ?

https://backpack.tf/profiles/76561198345751006#!/compare/1589068800/1589328000 - ?

https://backpack.tf/profiles/76561198345751006#!/compare/1589673600/1589932800 - Use for the Virus

https://marketplace.tf/items/tf2/15057;15;u701;w2;pk57;kt-1 + https://backpack.tf/item/7791269080 - Sold for $49.99 (low)

https://marketplace.tf/items/tf2/15057;5;u701;w2;pk57;kt-3;festive + https://backpack.tf/item/4162610287 - Sold for $59.99 (35 Keys)

https://backpack.tf/suggestion/5ec5a10922c3c476ca3c7828 - The Zapateador has an open suggestion at 23 Keys, so Sale 1 should be used for the Rocket

You'll need to look further into the Cold Killer before pricing this, but use only Sale 2 for this once you do.