I own a copy of Sayers on Holmes. It's dreadfully tedious, except for the short story of Wimsey-Meets-Holmes when the former is eight. It is three pages long and I can scan for you if you like. :D

I've read the Baring-Gould book -- in fact I was certain that you were the one who had lent it to me! -- but aside from the whole Holmes thing it's mostly just a canon lexicon.