This sounds very helpful but I will need a little clarification, if you don't mind.
Where? if you could tell me about how long the quarter round is it would help me figure out where it goes.
S4S trim 1/4"x3/4"
Are you talking about this for the under side of the top section face frame? Is it flush with the face frame?
Agree about the crown molding, I do plan to finish the top with crown that is similar to kitchen cabinets shown.
Chair rail molding
So in addition to the S4S trim 1/4"x3/4", add chair rail molding at "the bottom of the upper section"?
Like this idea!
I know I'll get this, it is a bit confusing at this point though.