https://backpack.tf/item/8182154582 other sales

https://backpack.tf/item/8229806663

https://backpack.tf/item/8185735817

More sales:

https://marketplace.tf/items/tf2/30836;5;u132

$19.59 / $1.77 = 11.07 keys

$15.05 / $1.77 = 8.50 keys

$19 / $1.92 = 9.90 keys

$19 / $1.94 = 9.79 keys

$15.2 / $1.94 = 7.84 keys

$19 / $1.96 = 9.69 keys

https://backpack.tf/profiles/76561198197292179#!/compare/1589500800/1589587200

5.5

https://backpack.tf/profiles/76561198085880346#!/compare/1589673600/1589760000

6 keys

https://backpack.tf/profiles/76561198369565670#!/compare/1590624000/1590710400

Dead Presidents Helmet w/o a Home

Use there

https://imgur.com/a/IN0igOi - 4 buys @ 5.5, 1 sale at 9

That makes sales at:

5.5 (x5)

6

8

8.5

9.5

10 (x3)

11

This is definitely gonna need a wide range. As ugly as 5.5 - 10 is, it might be the best here