I take a slightly different view on this – I feel that most of the technology is very similar and total cost is the main driver here. Be it Meraki, Aerohive, Ruckas, HP, Cisco, etc, etc a high proportion of cost will be the management. Clearly you guys have far too much time…. A simple to deploy, simple to manage solution is the way forward.
After all it all be obsolete in 3 years…. Buy the cheapest TCO platform… And take your time into consideration.
Incidentally, as the Education World rightly moves to the cloud, why are you trying to create a private network?