I've done it, both piecing & quilting. I used the gym floor of a local school where my DH works to lay it out.. Maybe you could ask a local school, church or someplace with a large enough floor space to borrow a floor for an hour or so. As far as quilting, I begin in the middle, rolling up the quilt to fit under the machine, I didn't use a long arm, and quilted it in sections, pulling the quilt toward me as it goes through the machine. It takes planning but its do-able. Good luck.
Cathy S/Willowwind