Established on the approach - Checkride question

I did my instrument checkride the other day and passed...

Question for this group.

I was being radar vectored for the SHN NDB approach. I was cleared in
the following way: Cessna 61786 14 miles from NDB descend and maintain
2000 until established.

The problem: I was outside the 10 mile ring on the plate, established
on the inbound course, no way to tell when I would be inside 10 mile.
However, I would need to descend to 1400 before the NDB to have a
chance to descend to MDA of 900.

What would you all do?

Endre