Hello pbad,
Naturally we would be happy to provide a quote for your school.
Your summation of the other services you may no longer have access to is correct. As with the above, we can replace your connectivity and filtering although with Exa everything is under one roof, as we provide our own, ever evolving Surfprotect solution.
The CRISP issue is certainly a contentious one. Some schools have been told they would need to pay a large sum of money to retain access to this. However I am working with a number of Birmingham schools who are looking at various "work arounds" !
I would be happy to come and see you to discuss your requirements further.
Kind regards,
Damon