Some other things to consider...
You might not sell as many raffle tickets if potential buyers cannot see the quilt 'up close and personal' before buying...front and back, not obscured by plastic in any way. They don't have to touch it in order to see it.
Choose the places of display with some forethought...keep it out of pizza parlors, bars, and such, where the odds of damage would be increased. It should be made clear to the participating businesses that THEY are responsible for the quilt's safety while it's in their establishment.
Make sure the FTC label (or a copy) is visible to potential tickets buyers (and, btw, make sure the quilt HAS an FTC label).
http://business.ftc.gov/documents/bu...-and-wool-acts