Thank you all for your insight and pictures.
I am trying to place the tie downs low inside the box so that I can secure items that are inside the box and do not extend above the sides.
I like the idea of replacing angle strip mounting bolts or the outside board carriage bolts with eye bolts (my angle strips are bolted in place) but I may install D ring types a little higher on the side aligned with the stake pockets so they are not visible from the outside.
