Given there is not one reference to pi, anywhere in the Ancient Egyptian archives, if you can write real pi in unit fractions you will be famous!
Not to be unkind, but you seem to have little comprehension regarding the mathematics established by the cubit and its divisions of 7 and 28 and the subsequent 1-16 subdivisions of those 28 digits or how it was employed by the Ancient Egyptians. You ignore the information Manu provided from Hemiunu's mastaba, being he is the reputed to have been the architect of G1. Having deciphered some ancient symbols, doesn't mean that we have fully grasp the mathematical concepts these ancient ancient symbols represent or use them in the same manner the ancient cultures employed them.
Sorry Davidk, again, not to be unkind, but there is nothing in the Ancient Egyptian archives to even remotely support your speculations.