Yeah, absolutely, you can get an ADR at any time up until the day you get ppr / copr. R10 is most likely done if your medical is approved, although sometimes it lags behind a bit. If you got your BIL, that is another indicator that R10 is most likely done. While the R10 check does see whether required documents are there or not, this is a very basic check and does not necessarily mean that the documents you have uploaded are considered the right ones or sufficient enough—this is up to you to ensure. The hardcore check will happen during the eligibility stage, which might have begun for you or might not have. Send the ECA and then if they want anything else, they will ask.