How much do you have?
On the weekend when the Quilt Show had 220 free videos to watch I saw Alex Anderson in #1704 make what she called a 3 hour quilt. I don't know all the measurements but the "panel" piece in the middle was cut 24½ x 30 ½ and then a 3 ½" border around , and then quite large flying geese in the outside border. Maybe you could try something like that?