Re-suggesting (the previous suggester can't do it, he has -4 rep points. Made the suggestion through comments for him though)

Original suggestion : http://backpack.tf/suggestion/58d8afe4e33877408b3c8e1b

Sale #1

http://backpack.tf/profiles/76561197998934095#!/compare/1483920000/1484092800

Sold with 3 keys of sweets for Warp Gatsby -> 40 keys flat price

Mini on Gatsby :

http://www.tf2outpost.com/trade/28685253 B/O 43

http://backpack.tf/profiles/76561198305858917#!/compare/1484006400/1484179200 capped at 43

Sale #2

http://backpack.tf/profiles/76561198141396366#!/compare/1484092800/1484179200

http://backpack.tf/profiles/76561197998934095#!/compare/1483920000/1484092800

1:1 with the HM Buddy (outdated), not using

Mini Buddy

http://backpack.tf/profiles/76561198057160393#!/compare/1484092800/1484179200 1:1 GBH Tyro

(2 years old price, no recent sale on it), not using

Sale #3

http://www.tf2outpost.com/trade/28785980 B/O 50 for a month

http://backpack.tf/profiles/76561198153370950#!/compare/1490400000/1490486400

Sold for 40 keys pure flat price

Any pertinent comments are welcome