Make sure you get a 'hard mouth' calf...
If you dont, you will the next time.
In our neck of the woods, you can run a cow and calf per acre on improved pasture.
Dont forget a bull, if your going to raise your own calves from your cows, and he's gotta eat, too.
Dont get a brahma, get a black angus, grass feed it until about 2 weeks before your ready to butcher it. Then put it up and grain feed + good hay for 2 weeks. Pasture fed it will be ok--- grain fed for 2 weeks will bring out the marbling--- grain fed longer will make for lots of fat.
Good luck!