Oookay.

Sale 1: https://backpack.tf/profiles/76561197966756586#!/compare/1547683200/1547856000

https://backpack.tf/profiles/76561198013519231#!/compare/1547683200/1547856000

Additional info to sale 1, credits to KFC:

https://backpack.tf/profiles/76561198013519231#!/compare/1547596800/1547683200 - 438 pure.

https://backpack.tf/profiles/76561198019444465#!/compare/1547596800/1547683200 - where the rest of the keys came from in Waynes compare.

Sale 2: https://marketplace.tf/items/30177;5;u13 - 555.51/1.77 = ~314

Sale 3: https://marketplace.tf/items/30177;5;u13 - 555/1.78 = ~312

Sale 4: https://backpack.tf/profiles/76561198119149660#!/compare/1549238400/1549324800

Sold for a Purple Energy Merc's Mohawk (220 keys) + a Stormy Storm Aztec Aggressor (58 keys) + ~152 in adds

220 + 58 + 152 = 430

Mini for the Mohawk: https://backpack.tf/suggestion/5c590aeccf6c751f263ec22f

Buyers: https://i.imgur.com/W1CJwtF.png. Taking into consideration, that 438 pure sold pretty quick, im excluding the mp.tf sales, which are also pretty close to buyers and going with a range of 430-440.