And according to the scepticalmethodological motto lack of proof means proof of nonexistence and consequently that Moses is a mythical figure being staged because of religionpolitical circumstances probably invented by a Jewish priesthood in the centuries prior to the beginning of our calendar

What is the correctly punctuated version of this sentence?
And according to the sceptical-methodological motto, lack of proof means proof of non-existence, and consequently that Moses is a mythical figure being staged because of religion-political circumstances, probably invented by a Jewish priesthood in the centuries prior to the beginning of our calendar.