I'm building a desk for a friend out of red oak. The stain he wants is a darker, almost red, stain. For the desktop I would like to try a red oak frame with a different kind of hardwood in the middle. My conceren is what it will look like with the stain. I'm looking for suggestions on what kind of hardwood I should use in the middle of my red oak frame and can I use the same stain for both the frame and center. Not sure how to do this and very expensive if I do not do it right.