I wonder why you wish to reproduce an american style kitchen, here in this countr.
Whatever you choose, I suggest you pick out you're style preferences and google around and see who does what and how much.
I certainly wouldn't use wood turning pilasters rather than plaster some newel turnings look comparable.
Should the cost be pretty high, you can get, or make decent moulds, and a large bag of moulding plaster from British Gypsum.
A man in our plastering gang got very good at it when we had to repair some damaged mouldings in plaster ceilings.
Regards Rodders