I need more advice guys! I will soon be starting another Razorback quilt:

Click image for larger version.  Name: IMG_9243small.jpg  Views: 86  Size: 253.7 KB  ID: 14597 BACK

Click image for larger version.  Name: IMG_9238small.jpg  Views: 84  Size: 206.0 KB  ID: 14598 FRONT

But, I want to do this one a little differently. I think it might be easier for me to quilt in three pieces.. top, middle and bottom. But, the back is my concern. I would have to sash the back in 6 pieces then I think (my facbric is 45" wide so it takes 2 across). Also, how do I put them together if I do this? Do I need to have extra sashing fabric for the front too? In putting the thing together, I think I would need to hand stitch it, right? I don't mind that at all. Would I need to do anything to the batting in the way of stitching it together?