As far as wattage, the 3 200W should be more than the Reef Breeders 50". According to BRS, the Photon 50" runs at a maximum 240W. Not sure how many Orphek bars you had but I should think a couple of bars would not add enough wattage to be more than the 600W the three Nicrews would provide.
Nicrew says the 200's can cover up to 36"x36" so that should cover your 30" deep situation. As to whether the spread will support SPS or not, you might just be the guinea pig on that one! But luckily you would have the Orhpeks if needed.
But to answer your question directly, I think no one knows given how new these units are.