Don't know if this will help for this particular tire. but...
Sometimes the back side of the bead is easier to get over the rim. In the past, you might have noticed that the second bead is often easier to deal with. When installing the second bead, the backside/innerside is what is pressing against the rim.
If a tire is of a reasonably large volume, you can arrange that both beads have to be lifted the same way: Start by placing the rim in between the tire beads. In other words, make both beads hang over the outside of the rim. Let me try some ASCII art:
(^^^)
..|_|..
The (^^^) is the tire, and the |_| is the rim. (Ignore the periods.) With neither bead seated, you can push the rim way into the tire so that you don't have the fight the bead.
Then, lift the first bead over the rim:
.(^^)
|__|..
Now proceed normally by stuffing the inner tube in making sure it isn't folded/pinched, and then lifting the other bead over.



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