Team Fortress 2
Counter-Strike: Global Offensive
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I'll just do it myself, it'll be faster.
(Credit Anzu) sold + 4 keys for Sunbeams Toque (53)
= 49 (Rounding to 50 for neatness)
Sold for $89.73
Sold for Frostbite Marauder (44)
Sold for 40 pure.
Let it ride.
The Frostbite Marauder wasn't involved in sale 3. It was an Orbiting Fire Bomber + something else (Elfin doesnt match either), but will fall in range most likely.
Another sale around ~42 here:
The range should be fine.