The "Lowest Standard" at any freight operation more often than not are the former PAX pilot's they hire...who usually can't handle it and leave or count the days until they are recalled back at their former carrier.
To stay on topic, forget worrying about (for now) what it takes to get hired with the "Top Dog", worry about getting ANY freight job. Fly radials, singles, light twins and first and foremost learn how to be a Freight Dog!
It may (will) require learning to work on planes, changing tires and oil, loading/unloading and all the grunt work the PAX guys will never have to deal with.
Freight Dogs must learn early on to do more with less, hence the advantage. You will be your own dispatch, flight planner, co-pilot, load master, MX (in some limited cases), and above all the PIC so never forget that.
Once you earn the stripes, doors will open for you.
DBW