Oh, that problem. I had to deal with them before as well. And I was an idiot too for leaving the settings on VH/VH. Arche Seleukia will probably be too far away to pose much of a threat. The Ptolemies will be the mess. But they send small stacks over, nothing like a giant invasion force ("Yellow Death").

The Ptolemaic armies didn't do so great when confronted by Red Sea Hoplites. I'd use them to hold the lines while other units come in from behind. It scares the enemies and their morale drops. It's useful since Saba lacks any real shock units.