Debbie,
I�m so glad you finally have conclusive proof of the extent of your son�s intellectual ability and needs!
We don�t have an immediate necessity (or spare cash), but since I�m from MN, I have mulled over the idea of bringing one or both kids in for a consult with Dr. Ruf during a visit. She really impressed my husband and me when we went to her parent seminar at the DYS summit last year. I would bet she could get very specific with school recommendations if you are from the twin cities.
Since Ania brought up the school issue, I would highly recommend looking into other schooling options too. My ds (and I) have just returned home from his second day of orientation at the new college prep school that he was fortunate enough to receive financial aid to attend and he could not be more in his element socially! Judging by the little instruction I heard in the last few minutes, the pace of instruction and temperament of the instructor seem perfectly tailored to his ability and personality also.