My journey continues.

Sale 1: Sold with 14 Robo keys for Scorching Flames Prospector[37.5 keys]

http://backpack.tf/profiles/76561198162307646/#!/compare/1457683200/1457769600

37.5-14=23.5 rounding to 24 keys

Sale 2: Sold for Disco Beat Down Towering Titanium Pillar of Hats[37 keys via mini]

http://www.tf2outpost.com/trade/27674379 b/o was 30 keys

http://backpack.tf/profiles/76561198162307646/#!/compare/1457596800/1457683200

Capping it at the b/o of 30.

Seller at 25 keys: https://gyazo.com/8b34a3e631e644e7019d05d9121c1f5c.png

Mini on Pillar of Hats: Sold for Miami Nights Headsplitter

http://backpack.tf/profiles/76561198137832611/#!/compare/1456041600/1456473600

Mini on Headsplitter:

Seller at 37 keys: https://gyazo.com/9b4971ea255c8758f77a50041ed223eb.png

So I've got sales at 24 and 30, and a seller at 25 keys. 30 keys isn't that far off, so I think I'll make a range of 24-30 keys here. Feel free to correct me here, if I'm wrong about this decision.