Mia-
I can understand your curiosity. Outdated and questionable as it is, the LM is the only test that really opens up to show the differences among EG-PG kids. Current tests are like the stick to ride the rollercoaster at the amusement park. "Yup, you're tall enough..."
Only one of my kids was tested on the LM. His score was quite high, and it helps *me* to see how different he is, much more clearly than the 160 GAI he had on the WISC. I don't know how confident I would be about sharing it with anyone in a school for advocacy though, as it does have a tarnished reputation.
I did not seek the LM for my other children, as now that I have the score for one, I can extrapolate for the others based upon their relative strengths and weaknesses, and their scores on more modern tests. I suppose I could really get into it as far as guesstimating subtest scores, but I haven't gone that far.
I have a friend in the Chicago area. If you like, I can ask her if there is a tester she recommends. I am not certain if her children have taken the LM, but she might be a good source of information nonetheless. PM me if you want.