Missed the Buyout. Thanks for pointing that out, kurryworst003.

http://backpack.tf/item/1225685183

Sale) Sold + 12 Keys of Items for a Scorching Flames Trencher's Topper (103 Keys)

http://backpack.tf/profiles/76561198225463104#!/compare/1471478400/1471651200

http://www.tf2outpost.com/trade/28411563 - Capped by the Buyout of 80 Keys

Trencher's Mini

http://backpack.tf/suggestion/57b8acfb83de6b166e3725d1 - 103 Keys

Long story short, Troll and FatRat traded a few times to test each Unusual out, and in the end, the Nano was traded for the Trencher's.

Chat (credits to FatRat) ---> https://imgur.com/a/59BGb