Thanks to Aj for answering questions when it came to some trades, without him this suggestion wouldn't have been made.

Sale 1: Bulk

https://backpack.tf/profiles/76561198066048535#!/compare/1621382400/1621468800

https://backpack.tf/profiles/76561198851200748#!/compare/1621382400/1621468800

Sale 2: 180 keys

https://gladiator.tf/listings/60a6d14cf796ad86545444aa

https://backpack.tf/profiles/76561198256279519#!/compare/1621382400/1621468800

Beak never appeared in the compares for Sunjar's inventory but buyout was 180 keys via gladiator link

Sale 3: 67 keys / untrace?

https://backpack.tf/profiles/76561198256279519#!/compare/1622160000/1622332800

https://backpack.tf/profiles/76561198146046621#!/compare/1622160000/1622246400

Only 67 keys appear in cat's bp so either he quick sold it or the rest of the keys just dont appear. Just going to go with untrace

MP.TF Sales:

https://marketplace.tf/items/tf2/315;5;u33

March 13th: $299.99 / $2.19 = 136.98 keys

March 20th: $349.99 / $2.19 = 159.81 keys

May 23rd: $362.99 / $2.00 = 181.50 keys

Total sales:

137

160

180

182

With bots in classifieds being at 180 keys+, going to exclude the 139 and 160

going with 180-182