First off, I would focus on not getting fat while taking time off training. If you can do cardio, do it. Once you are back at it, your muscle will come back fast. Look at Victor, and what he went through when he went to jail for 6 months. He was SMALL when he got out, but it came back fast.
Then when you get started back up, see how you feel. Give yourself a month or so naturally and then feel it out. I'd just have my gear on hand and then start when I feel strong again and ready.