Maybe, but I'm not sure. I guess that isn't much help!

It sounds like his math score is really strong and would absolutely qualify regardless of whether the WIAT reading score is there or not. Here's a thought: now that he is more comfortable with this tester, would she be willing to do some work on the side of her regular job and have you pay her privately to retest him on the WISC-IV? If those scores qualified, it sounds like he'd be very, very likely to get in.