The grace notes he hits on the endings of "Trilogy" and "How Great Thou Art" are a B above middle C. I think that's about the highest notes I can think of he ever reached in a non-falsetto range. Pretty impressive range.
I'm not at a piano right now, so I can't comment on the others. On the last chorus of "Heart Of Rome" he hits a pretty high note, "in the heart of Rome....". "Sylvia" was high, and so were LMLTLIL and "Padre". He sounds very strained on the latter two, but I think he could've sung it better with a few more tries.