Also thanks to Moose for help with this sugg, too

Mar 4 - 312.19/1.92 = 162.59 keys (163)

https://marketplace.tf/items/tf2/30623;5;u9

marketplace.tf/items/tf2/5021;6

https://backpack.tf/item/6663833294

152 Keys + Negligible Metal

https://backpack.tf/item/8581963988

https://backpack.tf/profiles/76561199581722058#!/compare/1775001600/1775088000

https://backpack.tf/profiles/76561198886513032#!/compare/1775001600/1775088000

Untrace:

https://backpack.tf/item/7688060691

https://backpack.tf/item/4134788895

Moose:

https://backpack.tf/item/7688060691

https://backpack.tf/profiles/76561198447050204#!/compare/1769990400/1770076800

https://backpack.tf/profiles/76561198308347465#!/compare/1769817600/1770163200

Sold with a max head and 10 keys for a Spelled TS Footprints Max's Severed Head

There is no mini for the Footprints max's

https://backpack.tf/item/4134788895

https://backpack.tf/profiles/76561198046264916#!/compare/1770422400/1770508800

https://backpack.tf/profiles/76561198321499430#!/compare/1770336000/1770768000