North Rim (actual East Rim) Grand canyon FR-611

I read the reviews at Campendium and have looked at Google Map.

Does anyone have more information on camping in a 30 foot 5er on the East rim. We will be in the area May 1st and the NP north rim campground will not be open.

Any GPS locations of a good site for my 5er. I do not want to get on a "dead end" road with no place to turn around.

I plan to stop at Jacob Lake (if they are open) and also ask for information.