A breakfast at CM's is going to take you at least an hour. And as you've already been told, no, you can't take DME from a resort other than your own. You can check your bags at the resort, in the morning...at least 3 hrs prior to your flight departure (and if you are flying on a participating airline!). So, if you got an ADR at 7:30, you would be there until at least 8:30. Your DME p/u time would be about 9ish....3 hrs prior to flight departure! No way are you going to make it back to POFQ in time!!
So, I would eat at POFQ and have a relaxed last few hours. Or, if you insist on eating at CMs, check your bags and get your boarding pass first thing in the morning, before 9...they open at 5....and then eat at CMs as early as possible and take a cab or car service from the CR to MCO. That way, you could leave the CR by 9:30-10 and still get to MCO in time for your flight.