'end to end' is probably an unattainable goal. I'd go for understanding it at some level given some axioms, and gradually dig in to the axioms.

I think it's difficult to create an all encompassing post for that reason. It's a bit like trying to describe how any application protocol works - can you assume knowledge of TCP/IP? Do you just black-box it? etc.

My contact details are in my profile and I'm happy to lend a hand if you think that might be useful.