Sale 1: Sold for Bonzo Prehistoric Pullover (600 keys)+Misty Skull Blighted Beak (230 keys).

600+230=830 keys.

https://backpack.tf/profiles/76561198043812004#!/compare/1542758400/1543104000

Minis: Misty Skull Beak sold for 230 pure.

https://backpack.tf/profiles/76561198070664972#!/compare/1543017600/1543104000

Sale 2: Sold for 350 pure+Brain Drain (55) & Eldritch Opening (92) Hat to Kill For+Sunbeams Vive Le France(220)

220+350+33.5+92=695.5, rounding to 700 for neatness.

https://backpack.tf/profiles/76561198061464918#!/compare/1541894400/1541980800

Minis:

Eldritch Opening HTKF, sold for 154.64$ on Marketplace.tf, excluding sale at 70$ since buy orders are higher.

156.64/1.70=92 keys.

https://marketplace.tf/items/30753;5;u115

Brain Drain HTKF

Sold on SCM for 67 euros, on Dec. 3rd, https://steamcommunity.com/market/listings/440/Unusual%20A%20Hat%20to%20Kill%20For , at the time, keys were 2 euros, so 67/2=33.5, taking that as the price.

Sunbeams Vive, suggestion at 220 should still be fine to use.

https://gyazo.com/de88c81c9b8a420785064e00fe05bec2

Screenshot of the HTKF buyer saying what he bought it for, and here is the history of the hat.

https://backpack.tf/item/7323660835