Hey Fellow Georgian-
When I tried to MapQuest, it wouldn't let me put Port Canaveral in the destination place. So I just put the hotel near the port that we are staying in which is 3655 N. Atlantic Ave- Cocoa Beach, FL 32931 (it is the Quality Suites).
From Cumming, GA where I am, to Cocoa Beach it shows 537.12 miles and 8 hours, 57 minutes.
That's about an hour longer than we figured. So I don't know where you are in N. Georgia, but that should give you a little bit of an estimate if nobody gives you the address. HTH!