converting from buds to keys!

Sale 1: (invalid sale)

Involved in a huge deal for Harvest Team Captain

http://www.tf2outpost.com/trade/25147864

http://backpack.tf/profiles/76561197993330948?time=1424419200 → http://backpack.tf/profiles/76561197993330948?time=1424505600

Sale 2: (credits to [R4U-M] ᴾᴾᴹ Shuffle Spy [7309] for providing the sale)

Sold for Knifestorm Scotsman's Stovepipe* = ~6.4 buds (buds were 11 keys) = 70.4 (rounding to 70 keys)

http://www.tf2outpost.com/trade/25148901

Sale 3: (credits to Traitor Joe for providing the sale)

Sold for 72 keys + 1 bud (buds were 11 keys) = 72 + 11 = 83 keys

http://backpack.tf/vote/id/54fbab93b88d88280e8b4dc6

http://i.imgur.com/TZhqgh6.png & http://i.imgur.com/gsPBsNg.png

Support-proof:

http://www.tf2outpost.com/trade/25148901 - B/O of 77 keys (7 buds [buds were 11 keys])

Notes:

For valuing the buds, I'm using the price at the time of sale.

Converting the value of this unusual into keys as right now, 6.7 buds (~54 keys) does not represent it's true value.

* = see previous accepted suggestion: http://backpack.tf/vote/id/55051cd1ba8d8847488b50d3

Conclusion:

Sales at 70 and 83 keys, along with a B/O of 77 keys. Taking a final range of 70-83 keys.

Feel free to support/counter my suggestion!