Your quilt is beautiful. It looks like it is finished already, with the binding on it. Did you also use batting with the minky? It will be a heavy quilt if you also have batting in it. I have a quilt top that I will be putting minky on the back, but I'm just going to use a piece of flannel for the batting so it isn't so heavy. It will be lap size. For the rest of your concerns; yep, just what they have already advised you. Walking foot. More flat area to spread out.