Try this Breeders List , they have quite a few listings for Tx that breed lots of colors. Maybe one of them is close to you, or will ship.
ETA... Yes your Guinea Hen can hatch out some hybrids. They are rare, and usually don't live as long as normal poultry breeds tho. And of course they are sterile. But if she hatches a whole clutch you could sell them and pay for new keets or eggs!
Thanks, the hunt is ON! Maybe DH will like the colors enough to not have a COW when they hatch out guineas , he loves babies. Lol