my first king sized quilt i had quilted by a long-armer cost me $385! yes it is beautiful...but wow- what a deal-
but on to your question=
it can be done on your machine- roll it from one side to center- then the other side to center- and quilt down through the center- start unrolling-working your way out to one side- then turn and start unrolling-quilting the other side=
it is a job- and make sure you have table space to hold the weight. if i were you i would do some practicing on something something besides your quilt first to get the hang of the process of working with the long rolls.