Unlikely a box store would carry pre-mixed stucco but a real building supply store should have it or be willing to get it for you. Mixing your own stucco is not a hard formula and you will want as much control over your colorants as possible.
Am I reading your post correctly? You are planning to stucco over an interior fireplace using the brick as the substrate/foundation for the stucco correct? You will fill in everything that is now brick with stucco?
Just a thought. Why not drywall or otherwise panel over the brick and texture that surface to match whatever you want? This approach would use a lot less material and you, or the next owner, could pull all apart if you tired of the look.
You might look into concrete mantels and fireplace facing too. A craftsman can crank out beautiful shapes and surfaces in whatever colors you might like. You can achieve a period formal look to ultra modern.
Am I reading your post correctly? You are planning to stucco over an interior fireplace using the brick as the substrate/foundation for the stucco correct? You will fill in everything that is now brick with stucco?
Just a thought. Why not drywall or otherwise panel over the brick and texture that surface to match whatever you want? This approach would use a lot less material and you, or the next owner, could pull all apart if you tired of the look.
You might look into concrete mantels and fireplace facing too. A craftsman can crank out beautiful shapes and surfaces in whatever colors you might like. You can achieve a period formal look to ultra modern.