You should have no problem. We always go this time of year and I don't always make ADR's right at 180 days. Last year, I didn't make them until about a month after my window opened...still had no problem with most things.
We are going for 9 days in Oct and were able to get everything we wanted for the times we wanted...heck I am still able to get reservations for our trip in August too!
I made one for Chef Mickey's just the other day and we'll be there in mid-Oct. I have to see if anyone else in our group is up for more ADRs. I would be! I doubt you'll have a problem.