The short answer is yes, it's simple to remove all the guns and that part will work without tears. Unfortunately, you won't like the results.
The Flak field has holes where each guns sits. You can drive a jeep through the terrain at some of those locations where you see the underlying water showing. Back during the Beta, I did this anyway for avaeto but it was only for a bomber target. You can't see the holes from 20,000 feet.
Would this be something HTC would have to do?
No.
If you still want to take on the project, send me a PM.