Do you have the specs for the range that would show where the counter is intended to be? Does that measurement include knobs and handles? We've got a KA range that has a little notch in the sides where the counter is supposed to hit it. But from there to the front of the knobs is still 3" that is intended to stick out. The more commercial-style ranges stick out a bit more, I think, as they are meant to be a bit more prominent and aggressive-looking and might have thicker doors.

As an aside, we did add 3" to the depth of our counters, but still pulled the range forward.

Good point! I checked, and the range + door is 26.5", and the handle makes it 29.5", so I think regular depth would be fine. My contractor had suggested going with a deeper counter, but I think it might look too massive for the space.