Well, I ended up putting towels on the kitchen table, butting the ironing board up against it and did it piece meal until I got it finished, loosely folding it as I went. As far as the backing, I folded it in half (it's wide!) pressed, turned, folded, pressed and turned again! It's not perfectly ironed, but it will work. Tomorrow, I get to clear the furniture out of the living room, tape the back down? or do I tape the front down? Can anybody tell me if it matters which is taped down? I'm using basting spray, but will probably add some pins here and there also.
This is the first, last and ONLY time I'm making a king sized quilt!