Sunyata, I think the five to seven Egyptian consciousness principles--which there are at least two versions and probably several interpetations of--are more similar than you think to the six or seven consciousness principles in India also described as about five koshas or three upadhis.

One interesting thing I read but could not verify is an Egyptian sun god was 'On.' It sounds like the end of 'Ammon' (or Amen-Ra,) who is a sun god some people think is related to Om/Aum.