Under this question, I asked the poster a number of clarifying questions in the comments. The clarifications have quickly become rather unwieldy, so I decided to move the discussion to chat (with the help of the moderators), leaving only a couple of lead-in comments. Now I see the chatroom is gone. It contained some valuable information that clarified the asker’s situation and would be quite helpful in providing a relevant answer.
Can this chatroom be restored? And more generally, what is the best course of action in a situation like this?