The paper written by Sungenis is one of the worst examples of scholarship I have ever seen.
He makes MANY assumptions that cannot be proven in any way, and he has gaps in his logic that one could drive a truck through. He doesn't even use the Douay-Rheims Bible or its Latin translation, instead using the RSV Bible, which I cannot say I have ever seen a Traditional Catholic do, for his scripture references.
I'll probably take the time to refute him point by point.
But for now, I will answer his claim that there are no FE'ers who can provide a genuine photograph of the flat earth. This is not true. There are many non-NASA amateur high-altitude balloon photos of the earth that show no curvature at all.
See this photo of the sun in space and the FLAT earth: