Well...we are surely upsetting the mainstream and their timeline. : )
The lack of records and limited resources used to lock in a timeline
Fact is...if Adoption theory is true....and Sneferu/Khufu did not
build the big block pyramids...or the Sphinx...or Abu Roash.
If Serapeum and Osirion are pre dynastic
Then the Ubaid and Mesopotamian/Egypt link brings the
difussion which creates the Serahk kingship legacy
as its already modeled in mesopotamia.
Rulers and vassels....
Dynastic Egypt in its early periods...to Djoser is not singular
/unique.....but is a evolution of Mesopotamian primacy
with the 42 ancient Khemit tribes.
Khufu is trading with Levant via record. ...So its not outreach
but previous history relations.
David Rohl attempted to move the Chronology....allign it
My perspective is that the historian timetable such as Manetho
Or Herotodus....even the kingship lists of Sumer
are not correct in date/era allocates.
Some of our later historic records are locked in....such as the
Babylonian military campaigns.....the sacking of Canaan/Philistines
or Jerusalem...and then the dispersion in Babylon.
The past attempts to timeline ancient history are to rigid
and biased....heavy bias towards Isreal/Jews....and Khufu
family and Giza.