There is an alternative to "pushing" the quilt through on a regular sewing machine. Been there done that. Quilt it in sections. I figured out on my own, how to do it on a nine patch with sashing. But it can be done with any quilt. I'm not affilliated in any way, but there is a book "Machine Quilting in Sections" by Marti Michell that is wonderful.
http://www.frommarti.com ; Marti Michell, P O Box 80218; AStlasnta GA 30366-0218. JMO. By the way, I'm not a Community Benefactor. Don't know where they got that. Silvia