Combining a bar graph with a stacked graph.

Hello,

I'm currently trying to plot a graph that shows two sets of data per day of the week:
-Orders
-Total units (with direct orders and fulfilled orders stacked on top of each other).

If you refer to the attachment provided, this is the furthest I've gotten by searching forums, but there's a couple more things I would like to do:
-Have the days of the week centered under the two sets of bars that represent each day, and
-Move the two sets of bars on each day closer to each other, without the stacked bars separating from one another.

Any help appreciated. Thanks!