prepping for my first 50

I'm doing the Goofy Challenge in Jan and in May I'm doing my first 50 miler. How do I go about getting ready for the 50 miler after Goofy. I usually take a few days off after an event but, I'm not sure how I go about getting back on track. Do I take a few weeks of just easy runs or do I jump right back into training? What kind of long runs would you do after Goofy? Plus, I'm see there is a trail half/marathon two weeks prior to the 50 miler. Would you guys consider this for training purposes? Currently I'm up to 60 miles a week and feeling good!