Resuggestion, thanks to K1ng for the info!

Sale 1:

https://backpack.tf/profiles/76561198081042493#!/compare/1566345600/1566432000

https://backpack.tf/profiles/76561198059836930#!/compare/1566432000/1566518400

Sold for 48 keys

Sale 2:

https://backpack.tf/profiles/76561198059836930#!/compare/1566604800/1566691200

https://backpack.tf/profiles/76561198074895734#!/compare/1566604800/1566691200

Sold for Eldritch Handcraft(51) + ~1 key in sweets

Total is 52 keys

https://bot.tf/stats/listings/4W61L595

B/O of 58 keys

Sale 3:

https://backpack.tf/profiles/76561198074895734#!/compare/1567036800/1567209600

https://backpack.tf/profiles/76561198088459363#!/compare/1567036800/1567209600

Sold for ~24 keys in sweets + Searing Honcho(22)

Total is 46 keys

https://bot.tf/stats/listings/Y35ZWP61

B/O of 45 keys, capping

Sale 4:

https://backpack.tf/profiles/76561198088459363#!/compare/1568419200/1568505600

https://backpack.tf/profiles/76561198148983233#!/compare/1568419200/1568505600

Sold for Beams Tree

Tree Mini:

https://backpack.tf/suggestion/5d9ba732678072151a587cc6

Suggestion for 52 keys

https://bot.tf/stats/listings/4RGVV1N9

B/O of 54 keys

Sale 5:

https://backpack.tf/profiles/76561198148983233#!/compare/1568505600/1568678400

https://backpack.tf/profiles/76561198833954279#!/compare/1568592000/1568678400

Sold for CPS Tundra + ST Pool(12.5) + 1 key

Tundra Mini:

https://backpack.tf/suggestion/5d79085f6780722d312acf04

Suggestion for 25.5 keys

Total is 39 keys

https://bot.tf/stats/listings/MNLQNN2Q

B/O of 50 keys

Totals sales @:

39, 45, 48, 52, 52 keys

calling 39 the outlier,

taking 45 - 52 keys.

K1ng's Part:

Searing Honcho suggestion got accepted, so it can be used here.

https://backpack.tf/suggestion/5dc5b30b67807209e93c16a4