Did a little more reaserch and answered my own question on BEC. The BEC is included in the ESC, Volcano 25A, that is coming with my package. The BEC then powers the receiver and the servos, correct? I guess I'll try and search for a wiring diagram online which will answer my questions.
The internet is an amazing tool. Trying to find this kind of technical information and networking with other people is great! I tend to have interests that are not really main stream so I really appreciate the access to information.
(I remember my old 300baud manual modem from the 80's, manual means I had to switch it from send to receive with a manual switch, for you young guys!) Thought I was hot stuff then!
Curt