Priced 5-7k 2 years ago, needs some updating.

History 1 https://backpack.tf/item/3806790399

Sold for 2 keys 41.33 ref. ~3 keys: https://backpack.tf/profiles/76561198298597700#!/compare/1615766400/1615852800

sale 2 untraceable

https://backpack.tf/profiles/76561199085116273#!/compare/1614297600/1614384000

https://backpack.tf/profiles/76561198108713124#!/compare/1608422400/1614384000

History 2 https://backpack.tf/item/3595484182

Sold for 2 keys 0.22 ref ~2 keys: https://backpack.tf/profiles/76561198841279602#!/compare/1613260800/1613347200

https://backpack.tf/profiles/76561198062747535#!/compare/1613260800/1613347200

scrap auction, untraceable

https://backpack.tf/profiles/76561198135388328#!/compare/1613260800/1613347200

https://backpack.tf/profiles/76561198062747535#!/compare/1613260800/1613347200

History 3 https://backpack.tf/item/9266905468

untraceable:

https://backpack.tf/profiles/76561198850178158#!/compare/1614902400/1614988800

https://backpack.tf/profiles/76561198417822430#!/compare/1613001600/1614988800

History 4 https://backpack.tf/item/4449645246

Sold 1:1 for the vicotry lap taunt (~2.58 keys) https://backpack.tf/profiles/76561198843942417#!/compare/1609632000/1615420800

History 5 https://backpack.tf/item/3651035634

untraceable:

https://backpack.tf/profiles/76561198216241727#!/compare/1611792000/1611878400

https://backpack.tf/profiles/76561198311274291#!/compare/1611792000/1611878400

Recent MP Sale: https://marketplace.tf/items/tf2/30572;5;u3006

Sold for $10.99

$10.99 / $2.10 = ~5.23 keys (Seems to be an outlier)

Gladiator buys for last 30 days: https://imgur.com/a/21ZbR53

2 @ 4 keys 17.66 ref (~4 keys)

Listings snapshot: https://gladiator.tf/listings/605011d0b851da34aa12f127

buyers at almost ~3 keys, sellers at almost ~4 keys

Removing the highest (~5.23 keys) and the lowest sale (2 keys 2 scrap), can obtain a final range of 2.5 - 4 keys

I'm still new to suggestions, feel free to comment down below and let me know if I've missed anything!