If you are on the leaked 5.7.893 you can not get the 5.9.901
at this point in time you are off the beaten path and can't go backwards to move forward to this update
If it's just your system that's 5.7.893 (ie just the ROM having that version)
then yes you can use the 43v3r to - restore / root / 43v3r root your phone
then take the 5.5.893 OTA, then manually install the 5.5.901
but BEWARE. if you do this you can not, I repeat can not run a custom ROM after the fact.
you will be stock rooted with 5.9.901 but that's it. that choice is up to you.
Before you do anything...What are kernel are you on? Settings>About Phone