Oh, I'm so gonna use this on the next hone I sell :)
Well, in their defense I believe they do eat the meat, and if they have use for the bones, I'd consider it a fairly green process :)
Anyways, looks like you're pretty much set for now. It's hard seeing you torture yourself with the boar brush conundrum, but I'm sure you'll come up with a satisfactory solution.
And some people like to mix cream with soap, so don't worry about the Williams too much. But I suspect it's more the lard in it that's troubling you than the idea of wasting it, although I may be wrong.