You've really filled in some gaps for me, and I think you've absolutely nailed the chorus! If anyone is at all interested, I'll post what I've deciphered from the main verses, which I found easier to understand.
I agree. This is one of the most difficult ones I've run across, apart from old Mr. Frank Hutchison.
By the way, can anyone make sense out of "sauerkraut is bully; I told you it was high"? This line makes no sense to me, though I can't see ever needing to explain it.
Joe, again, many, many thanks!
If you will only listen to who I speak a-bout.
I ain't no voice to tell you how to make that sauerkraut.
It's made out of vine`gar, so everyone suppose'
And of [off] that little flower, they call [pull] that cabbage roll.
When sauerkraut commence to smell, when he can smell no better.
We put him in that little barrel way down in the cellar.
We stomp him, and stomp him, we stomp him with our feet.
We stomp him, and stomp him, and make him nice and sweet.