Suggestion: Death at Dusk Western Wear at 27–35 keys

Sold for a Holy Grail Taunt: Buy A Life (60) + Spectral Swirl Taunt: Box Trot (40) = 100 keys. There might have been a Disco Beat Down Fruit Shoot involved on the seller’s side but it doesn’t show up in both compare links (as a matching hat https://backpack.tf/item/4522485936 ), either way, very easy B/O cap.

SALE #2 = 27 keys

https://backpack.tf/profiles/76561198277430948#!/compare/1494547200/1494720000

http://www.tf2outpost.com/user/76561198277430948 - no B/O

Sold for an Infernal Flames Taunt: Carlton (27)

SUMMARY

Sales: 27 / 35 keys

Sellers: -

Thank god for B/O caps :P

Going with 27-35 keys.

http://www.tf2outpost.com/trade/29191944#p65345933 - confirmation of the trade - fruit shoot was involved.

It's an outlier sale for sure, but in this case I feel like going with a conservative range is better than 27 flat.