Bill I think you can "enhance" the white pieces by applying a thin wash of any latex or oil based white paint, and wipe of the excess immediately, so it's just barely on there, then seal it with a clear seal. if you leave the maple unfinished and it is handled much it's going to pick up skin oils and grime.
They used to finish cabinets that way and had a fancy name for it, but I disremember what it was called. Try it out on some of the scrap pieces left over. Wouldn't hurt!
Gabby