This close to D-day, you're both probably in shock and aren't thinking clearly about your M. It would be good for R if he had woken up on D-day and immediately started doing R work consistently, but R can happen even though your H is disoriented.
Forget what he wants for a while.
Start with yourself and what you want and need. Do you really want to R with this guy?
NC is a pretty low bar to jump over. It's necessary for R but not sufficient. Normally successful R requires the WS to answer all questions, to stop lying forever, to be transparent forever, to do IC with a goal of changing from cheater to good partner, to do MC when appropriate, etc., etc.
Is your H willing to meet those requirements? If not, the 180 is your friend. If he is willing to do that work, R is a possibility - but you need to keep connecting with each other in R, and the 180 is about detaching - if you're in R, the 180 is not for you.