Unfortunately my isp shows stuff for a couple of days , so I could give his shot a scant viewing . From what I did see everything looked great .
Later thinking about it, I was struck by the differences between the originals [in stone] and our wooden facsimiles. If the originals were faithfully copied there would be a full line of columns closely spaced right along the length of the beam .
Our wooden versions of the lintels are capable of taking tension, so the spans can be increased considerably, vis a vis the length of engineered beams .
Again I wonder looking at the larger European cathedrals what would be the response of modern day architects when asked to construct such out of solid stone with the requisite 600+foot tower with foundations to match and every thing in compression [IE no steel]. Notwithstanding a workforce that could not read let alone have a knowledge of math or science.
It is no wonder that masons and their societies endured so long , 2000+ years ago they must have been viewed almost like magicians
-- mike hide