If your last support before the box is 36", since the hole in the box is about 1/2" above the bottom, then the angle of the conduit entering the box would be very close to prependicular. This won't look good if this arrangement is mounted on a surface such as a stud. But it should work.
That referenced thread concerns a lock-nut that only contacted a small area of the box. That was because the fellow underbent his 2" 90.
In turn, there was another thread about "Is speed important?" In which case, this became a matter of the poor chap getting the job "done" fast and is now facing an expensive and time consuming repair. [He may save the day with a grounding bushing though.]
Are you afraid of conduit offsets? If so, Greenlee makes a couple of handy tools for making them quickly, easily and uniformly.
Also, as implied above, you can elevate your conduit with conduit hangers [Minnies, Mineralacs, cowboys, whatever] or wood shims.
~Peter