I measure 36 3/8" to c/l of sector hole and 2" down from top flange. Keep in mind my dimension for the length is with a tape on the diagonal, not using vertical locations along a leveled frame. I assume you pulled the 35 11/16 dim. from a frame b/p.
Scribe a line down from the top @ 2" and then measure the 36 3/8", center punch where that falls on the scribed line and you're there.