Thanks to Shuffle Spy for the help with this!

I traded Wicked Wood Patriot Peak, a Fifth Dimension El Mostacho and a mixed offer of pure and items of 3 keys.

El mostacho (23 keys) - https://backpack.tf/stats/Unusual/El%20Mostacho/Tradable/Craftable/122

Proof of trade - https://gyazo.com/e53cfb0729da33c61b0cc11f977798b4

Since the Wicked Wood Patriot Peak is outdated (its price is too old to use), its sales need to be looked into. https://backpack.tf/profiles/76561198128349038#!/compare/1635465600/1635724800 - This was already used for the Yule Hog, so it can't also be used for the Peak

https://backpack.tf/profiles/76561198056086416#!/compare/1641254400/1641340800 - Dom quicksold the Peak for 94 Keys here

https://backpack.tf/profiles/76561198275478002#!/compare/1640995200/1641081600 - Can't fully tell what this sale is, but because so many hats were added with the Peak, that sale won't be usable anyway

https://backpack.tf/profiles/76561198093031738#!/compare/1637452800/1637625600 - Collector's Pro KS Pretty Boy's Pocket Pistol (124 Keys)

https://backpack.tf/suggestion/61ac19ef4245ed11672c36a5 - The 124 Key valuation is from this suggestion

https://backpack.tf/profiles/76561198263190057#!/compare/1640649600/1640995200 - 100 keys

The Collector's Pistol sales are also too old, but no valid sales have happened since the ones I referenced in the Yule Hog suggestion, so it'll be fine to use 124 as the Pistol's price (the October sale at 128 Keys for the Pistol was only 1 month before the Pistol-for-Peak sale).That means that the Peak has 2 usable sales at 100 and 124, so you could treat its price as 112 Keys, making the Peak + Mostacho + 3 Keys equal to 138 Keys, and you can price the Norseman at 140 Keys (138 rounded up).