Jack-

I suspect hiking is less jarring to a backback than a wagon's travel was to its contents. It may take longer to "churn" this way. If you are willing to carry liquid cream and some sort of jar, go for it. Your food plan makes use not only of the yummy fresh butter, but also the buttermilk. If this works for you, why not? You are hiking YOUR own hike. The buttermilk would also be good in pancakes and other foods. It might be "fun" to hike around with the churning cream to use at a base camp...

What cooking gear are you planning to carry and how are you cooking (wood stove, campfire, etc.?) I'm guessing you are not into my favorite heat water and dump method. I don't even have to get the water to boiling, just hot, ~ 180 F, for my pre-cooked and dehydrated food.

CamperMom