All that may be true. But Czar Ferdinand none the less wanted to become byzantine emperor. I'm not saying the Czar's ambition was at all realistic. But it was still what he hoped for in real life, regardless of how much sense it may or may not have made to others.How bulgaria can become byzantium while the real byzangium was their greatest enemy?and byzandium was a greek empire i dont get where the bulgarians connect to it.
Also I have high hopes for the success of your greek byzantine empire. Looking forward to trying it once its ready.