Depending on where you'll be in Dallas my friend has an awesome shop in Cedar Hill.less than 25 min from Dallas straight down hwy 67 in Cedar Hill. She's normally there on Sundays anyway, so if you call her, (tell he LaQuita) sent you and ask if she'd let you come over Sunday she'll open the door for ya when you get there!
Btw; her name is Rhonda & it would be Well worth the drive'
Corner Square Quilts LLC
702 Cedar St, Cedar Hill, TX
(972) 293-0088
But if you only have Saturday, I agree with the ones listed in McKinney & Plano. Been to them all!
Have fun!!