Also, I just found a Sportingnews.com article which states that besides AK and Hakeem, seven others have done it once (and those two are the only ones with multiple games).  Thus, the only possible five-by-fives not already listed on the page are from Hakeem's first two seasons, 1984-85, 1985-86... and then there are two other people who have done it one time.  So, though this still leaves tons of searching, it narrows it down a lot.