I might suggest folks start with say hatchery stock. Learn the ropes, how to take proper care of birds, how small a crack a coon can squeeze through, and so forth. Let the hatchery birds take the learning curve.
After you have it figured out enough that your birds have not only been surviving, but thriving, for a few years. I would then consider getting qualitity stock. I would suggest suscribing to the Poultry Press, study the photos of the winning Brahmas, ( the Press will also inform you of all upcoming shows, and many breeders), go to any shows within tolerable traveling distance, study how a proper Brahma is put together, ask questions and learn. I would also advise joining the breed club, as it can also be a wealth of information, and a directory to breeders. Being in Ohio you are in fine shape, the Ohio National in Columbus each November is a perfect opportunity to see many quality Brahmas and breeders.
Once you have decided on a breeder and get your brood stock, I would stick within that bloodline. Outcrossing to other lines rarely works out well. Rest assured maintaining and continuing a quality line can be plenty challenging in it's own right. The choices you make in selecting the breeding pen will have a major impact on the following generations. If you find a need to bring in new stock, I would advise going back to the original breeder, if possible, or at least a related flock. It takes some people a while to come around to this idea, but you will likely save time and money.