Going off previous suggestion

https://backpack.tf/suggestion/5c3af35fcf6c754b1242c33b

https://backpack.tf/profiles/76561198815487751#!/compare/1546819200/1547251200

Sold for Sunbeams Cotton Head (150)

https://backpack.tf/profiles/76561198815487751#!/compare/1545955200/1546041600

Omniscient Orb Cat's Pajamas + the Medi Gun

traded for

Burning Flames Greased Lightning, Strange Sunbeams Crit Cloak, Brain Drain Patriot Peak

This sale was determined to be unusable on the previous suggestion.

https://marketplace.tf/items/211;11;u701;w1;pk234;kt-3

https://gyazo.com/0c8e6f87d5991e239b0b45ce66147a40

Sold for $437.50 = 250 keys

As per comments on the previous suggestion, I will be taking the 150 sale and the large bulk-ish sale as outliers and going with 250 keys flat, using the marketplace.tf sale.