Re-suggesting with a new range per Mindacos' advice.

Train Headlights

http://backpack.tf/item/163370742

Sale 1) Sold for a Green Confetti Coldsnap Cap (58 Keys) + ~3 Keys of Items

http://backpack.tf/profiles/76561197999873164#!/compare/1487376000/1487462400

58 + 3 = 61 Keys

http://backpack.tf/item/253696528

Sale 2) Sold for a Burning Flames Rimmed Raincatcher (50 Keys)

http://backpack.tf/profiles/76561198042011386#!/compare/1489536000/1489622400

Raincatcher Mini

http://backpack.tf/profiles/76561198042011386#!/compare/1490400000/1490486400

http://www.tf2outpost.com/trade/28833361 - Capped by the Buyout of 50 Keys

Credits to Gent.

http://backpack.tf/item/1821555062

Sale 3) Sold for a Duped Orbiting Fire Soldier's Stash + Collector's Concheror

http://backpack.tf/profiles/76561198136981355#!/compare/1486425600/1486512000

http://www.tf2outpost.com/trade/28767756 - Capped by the Buyout of 45 Keys

Sale 4) Sold for a Purple Energy Medic's Mountain Cap (40 Keys) + Stormy Storm Napper's Respite (18 Keys)

http://backpack.tf/profiles/76561198074924284#!/compare/1487203200/1487376000

40 + 18 = 58 Keys

Mountain Cap Mini

http://backpack.tf/profiles/76561198140431189#!/compare/1485993600/1486425600 - Credits to Gent.

http://www.tf2outpost.com/trade/28899344 - Seller at 40 Keys. Taking 40

Sale 5) Sold for 50 Keys

http://backpack.tf/profiles/76561198125791160#!/compare/1492992000/1493078400

Credits to Mindacos