That does look like a real project. It's beautiful and all of the choices you have for the border would look fine. I'd do the small black first and then go with the fabric you like the best. I'm not big on two sided quilts but mainly because I hand quilt and the quilting doesn't make any sense on the back and once I'm finished with the front, my mind says enough and I do pretty simple backs. If I'm doing a lot of feather quilting on the front I prefer a plain muslin back so I can see the quilting when I turn it over. I guess because it takes so long to complete a hand quilted piece I want to be able to appreciate the work and it shows up better on a plain fabric. You are going to treasure that quilt and all the hard work you put into it.