I’ve bought a lot of bikepacking kit from alpkit, first rate service every time, they are great to deal with.
also the stuff they sell is all, in my experience, extremely well made.
I’m actually quite surprised to hear from the OP that he didn’t have a great response from them.
Might be worth firing off an email to their Customer service dep, highlighting what the issue is, they seem like the sort of company who would want to know ime.
fwiw, if i was looking for a new bike, I’d certainly consider any of the sonders, they all look like good, well thought out bikes.