Are these at 800 unique sites? If so, whats the need to have them as stand alone? If no other IAP devices will connect to the L2, they are effectively stand-alone. (but a single IAP will show up in AirWave as a VC and an AP, but only consumes 1x Airwave device license.
That said, you can modify your golden config, re-import the template after modifying the config making the following change to DISABLE on the IAP and you should be good to go.

Cheers, Adam