https://marketplace.tf/items/tf2/30836;5;u156 - $39.99 (22 Keys)

https://gladiator.tf/listings/60d1a89f9f25e8d6af6db9d1 - The 22 Key sale had a buyout of 15 Keys

https://backpack.tf/profiles/76561198442140110#!/compare/1627257600/1627430400 - Clairvoyance Motif + Ring of Fire Tank

https://gladiator.tf/listings/60fc14cda413989f5c751200 - The Motif and Tank sale had a buyout of 30 Keys

https://backpack.tf/profiles/76561198442140110#!/compare/1627257600/1627430400 - Bulk

https://backpack.tf/profiles/76561198147584613#!/compare/1628035200/1628121600 - 29 Keys + ~1 Key of Items (the 25 Key stack was included)

https://gladiator.tf/listings/610b6208d73aada725391b18 - The 29 + 1 sale had a buyout of 30 Keys

The Baker was gift wrapped in Sale 3. It's not part of the 13 Keys at all.

That gives sales at 13, 14, 15 (22 capped), 30, and 30 (32 in buyers capped).

With how wide of a gap there is between the sales, this should remain unpriced until more sales happen.