And I think that I should tell you that when I said I was "looking at Mark's checklist" in my post, that I was looking at that checklist of Series 5 cards posted by Mark in that thread.
I know, truly shocking!!! 
Ah, great minds think alike, wouldn't you say? I'll keep an eye on the Spreadsheet and see what happens from here.
UPDATE: I saw that you did it already, good job!