I don't think the vacuum bags, being plastic, would be good for the quilts over time.
I buy pool noodles and cover them with muslin. Then I roll the quilts on them and stand them up in a closet. If the quilts are wider than the noodles, I put two together using archival tape and cut them to the length I need. The registrar at our state historical society said that the pool noodles are fine to use if you cover them with clean, washed muslin.