I think 2:00 would be about when to expect to be arriving at EP so I would do the first one then. You've got an hour to use it, so even if you run a little behind should still be okay. One tip that I have for arrival day is to do a little risk mitigation against schedule delays by I always putting my most desired FP as the last one. For example, for Epcot, do your your Tier 1 ride last, so assuming your first one is at 2:00, your Tier 1 ride would be 4:00 - 5:00. That way, you have lesser chance of missing the Tier 1 if you are running late.