I am well into my 60 day window now, fastpass ship has sailed.
You still could possibly get a FP+. The ship has not sailed. I know this from personal experience. My sister had planned a trip for this May and I didn't decide to go with her until about 45 days out. Maybe it was more like 40 days out. Anyway, she had booked all her FP+s the moment the 60-day window opened and had booked several for FoP.
Of course, I wanted to match up my FP+s to hers and started in immediately after I decided I was going. Okay, yes, I did spend a bit of time refreshing the app--or the computer, depending on where I was--but I was eventually able to get overlapping-time FP+s or could change my sister's FP+ times to match others that were available.
Including her several FoP FP+s. In fact, I was able to get a pair of FoP FP+s for a day my sister hadn't scheduled any other FP+s.
The only day I couldn't get an FoP FP+ for myself was arrival day. I got Na'vi for that day. No big deal, I figured, since I still had FoP FP+s for later in the trip. On arrival day, when I got off Na'vi, I went to sit buy the Pandora gift shop to wait for my sister to get off FoP. While I was sitting there with nothing else to do, I thought, what the heck, let me see if I can get a FP+ for FoP. It took me about 5 minutes to score FP+s for myself and my sister for FoP--for like 5 minutes from then.
So--keep trying! When you have 5 spare minutes, log on to MDX and check out the FP+s for the day you're going to be in DAK. As you said, FoP is the best ride. Period. And if you haven't gotten any before you get there, try the night before. Often FP+s open up then.
Siva ko!