Gotcha - that was the missing info that kept me from understanding what you were asking. I agree with pixarprincess - if you don't really want to get up early every day, then not being able to get FP at 60 days is going to make things more difficult. Not impossible, just more difficult. I'd rather have the ability to get those 60-day FP because our touring style includes frequent late starts. But if your crew is fine with being up for RD every day, you can still get a lot done. DHS will probably be your biggest challenge, especially if you're going after GE opens.
Not your quesiton, but the fact you're getting tix from UT has nothing to do with 30 or 60 days. You can stay on property, get UT tix, and still get 60 day FPs.