Ok so sharing an order with the school is one thing - that's usually accepted. It doesn't take away that you still have PR and are entitled to reports, letters and updates etc. Sharing the Cafcass report I am sure isn't allowed.
You don't need to use a solicitor to appeal - you can do it yourself with some help on here. Another Dad on here did it and got a much better order after being left with supervised only indefinitely! I had never done one before, but we did his paperwork between us so I'm more familiar with the process now.
If you possibly can, then using a barrister for the appeal hearing would really help - but you don't need a solicitor. Don't be intimidated by it - you're entitled to appeal - and whatever the outcome it can't be worse than you have now.