Hi Doug
A couple of years back I did a little research on "Son of God, Son of Man" as used in the NT. I listed all the occurrences and color coded them as to who was using the term.
I can forward it to you if you would like. It's not an in depth study, it was a preliminary look and something I could refer to.
PM me if you want and I can send it to your email address.
PS. I have read much of your research papers and I have found them all to be excellent and informative.
NCC-1701