I want to get into model r with my grandsons.  I intend to go ho.  I need to know what, I need to purchase.  I defy want to use EZ track, DCC on board and a controller.  I want to do this right.  What are the pieces of equipment do I need to power the locomotives, switches, etc.  The layout will be between 4xe to 4x 8.  I want to build realism into the layout with active accessories like I had as a child with my Lionel set.   All advice and suggestions are welcome.  Advice on books videos concern layout construction and easy wiring are welcomed.
Thank You
John Kohan