I too would like to understand the details of your quality issues. As an owner of a mid year 2018. I have relatively few complaints, certainly not of the "Elkhart" variety. But then I've not had extensive time living in it since purchase. It tows like a dream - looks great, fit and interior finish are great, everything functions as it should, and overall I am happy with the quality.
Sure there were a few things I have "fixed", most involve exterior finish where a few rough areas needed a little polishing, etc. I've made a few modifications that enhance my usability and ownership experience, but they were not quality related.
I share my experiences on this forum because of the knowledge sharing the forum provides, and the benefits I gain from of other Oliver owners experiences. In respect to your issues, it pains me to hear your not satisfied. For myself, I would expect the Oliver management to deal with you directly, and fully respond to the issues you bring them - directly.
What you hope to gain here, sharing your problems on the forum, I am not sure, but I am interested in understanding the Oliver response, to the quality defects you have, perceived or not. I would be surprised if yours go unresolved.
RB