As far as quilting in sections, this is called "Quilt as you go" or QAYG. Do a search on both these terms both on this site and thru Google. There are multiple ways of accomplishing this, so if you don't like one way, keep looking for one you like. Marti Michel has a good book "Machine Quilting in Sections", Georgia Bonesteel's Lap Quilting books have a different technique written for hand quilters, but easily adapted to machine quilting.