I wouldn't assume yet that they are being obstructive. To change the diagnosis in the IEP, AFAIK they are supposed to re-evaluate.

It's fine to ask the spec ed director when they can get him into the preschool, and how to move the process along. Often they will start kids midyear.

They are likely to do much less testing if they have the private psych report in hand; that's on your side in moving it along.

DeeDee