Do you already have 1 pig that's male or a spayed female?
Rockwall and Ft. Worth are a lot closer to Mesquite than San Antonio and Austin. What about Plano, Richardson, Garland, etc?
Or are these places you've already found pigs? I'm not really understanding your post.
If you already have one male pig, or are willing to consider adopting two, then here is an all white male at Texas Rustlers:
Adopt Einstein + Giggles - Guinea Pig Small&Furry. Of course, he's an Abryuvian.
And here's 2 more at Texas Rustlers:
Adopt Scrubbs + Trent - Guinea Pig Small&Furry that would meet your looks criteria.
Of course, Texas Rustlers has very high adoption standards. Do you have a C&C cage? You'd need to fill out their adoption application and go to their rescue in person to adopt the pig(s). They only adopt in pairs unless you already have a pig of the same sex to be a friend for the adopted one.