Thanks to Grim, I can actually make a proper suggestion for this. Sold multiple times.

http://backpack.tf/item/2036513987

Solds -

Sale 1 ~ Unusable due to tavish, damn:

http://www.tf2outpost.com/trade/22969612 - SBTWC Tavish [SOLD with the taunt for the cannon], fountain of delight spent well spirits (1.9), and poisoned shadows virtual reality headset (4.3).

Headset: [Only recent usable sales] ~ http://www.tf2outpost.com/trade/23982366 - Sold for Max ~ 3.3 buds.

~ http://www.tf2outpost.com/trade/24509577 - Sold for 5 pure. ---> http://backpack.tf/profiles/76561198062128730?time=1421222400

Mini: Taking as ~4.2 buds.

Mini for the taunt: http://www.tf2outpost.com/trade/23541670 --> Searing hound dog + 4 keys (0.3 buds at the time). http://backpack.tf/profiles/76561198079973882?time=1415433600

Sold for around 300 ref in items ---> OUTLIER for sure. ----> http://www.tf2outpost.com/trade/23528338, http://backpack.tf/profiles/76561198106827262?time=1415088000

I guess we'll use the first sale for the taunt. No other recent ones.

Mini for hound:

1:1 with a vivid plasma dead cone --> http://www.tf2outpost.com/trade/22178982 ~outdated.

http://backpack.tf/profiles/76561198030572605?time=1418112000 ----> sold for 16 keys + wrapped summer shades. ~1.4 buds

Mini for cone: http://www.tf2outpost.com/trade/24500994 - 25 keys (~1.7 buds) ---> http://backpack.tf/profiles/76561198095284079?time=1420704000

Hound price: ~1.6 buds

Taunt price: ~1.9 buds

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Sale 2 - Quicksold for 7 - Unusable.

http://www.tf2outpost.com/trade/24550810

Sale 3 - Too old.

http://www.tf2outpost.com/trade/22685391