You belief is opinion to the core, and I think it is reading the wrong metaphore, picking and chosing what facts suit you, and that's fine. Start from conclusion and work your way back. The Bible is not factual, it is pure Zeit Gheist. It is pure myth!!! Adam and Eve were the Babylonian God's Marduke and Ishtar, Abraham was a Zoroastrian from Babylon after all. Moses never existed, there is no historical data to back up wandering in the desert for 40 years, there is no historical data to support when exodus happened. But if you look at the METAPHORE, you see it is the decent of the patriarch into the land of the dead and what comes of the land is the united Hebrew people.
And yes he could have been a Buddhist. They actualy sent missionares as far as Egypt, but again this is a dennotive mistake, my connotation thoughtout has been one of universal human spirituality and awakening in the same sense, not that he actualy was a Buddhist. Although he could have easily traveled to India from age 12-29.