It’s week 9 of the Trophies being available. So, that’s 63 days. 1000/63 = 15.87 dungeons per day, on average. When me and my WB do dungeons, each run (depending on which dungeon we get) takes no more than 2-4 minutes. So, that’s 31.74-63.49 minutes, so probably averages out to 45 minutes a day.
Which is only for dungeons. I don’t have 45 minutes spared only just for dungeons every day especially when you need to finish other tasks as well. 
I think I only do like 3-5 dungeons a day, or sometimes no, because I don’t have enough time to play DI for more than an hour.
Mine 1286 today now. Irony. The people who hated dungeons the most played them the most.
My resonance is a little higher than yours, but my C.R. is a little lower than yours. Of course, I took 7 months off.
The set items are similar and the legendary items are a bit lower than yours. All my main hand and off hand items are still below 1800. I’m having no luck with my legendary items these days. Or maybe I just play less field hunting than you.