You are going during one of the least busy times of the year, but even then a FP+ day-of available for Soarin or TT in the afternoon will be iffy. My suggestion is to book your 60-day-ahead FPs for Soarin or TT for the afternoon at Epcot. You won't have morning FPs for whatever park you are at, but since it is during such a non-busy period you should be fine with SB in the morning.