After much pulling of hair, and trying different buttons and closure options, I decided on Frogs. I think they are perfect for this jacket. However, I only have two, so I'll have to go Frog shopping.
Here's the front.
Close up of both fronts
And the back.
That's where I am. I've made a lining pattern, and hope to get started on that tomorrow.
Good sewing to you this weekend!