Last Two Columns

I spent a little time sewing the pieced sashings onto the remaining blocks to get the last two columns of the Old Town mystery quilt closer to final assembly. It's looking a little chunkier, right? Now for a whole lot of pressing before I put sew all of these columns and chunks together. I'm looking forward to the central part of this quilt being done. The end is coming into view! 

I'm even starting to consider what the backing should be. I think I might go with a wide-back fabric instead of doing a pieced one as the quilt top has So Many Seams. And then the binding fabric? Should I do all one fabric, all one colors, or piece together a bunch of the fabrics used in the top. I think a blue color might work out pretty well.