so this would pretty much be a short range air defence ?
considering the target types
cheap non super charged engines are stuck at 6.096 kilometre altitude
slightly better super charged and or turbosupercharged engine 12.19 kilometre altitude
global hawk 18.28 kilometre altitude
dragon lady 24.00 kilometre altitude
so your coverage will be something alike to a dome that decreases in range as your targets increase in altitude
>take ShKAS machine gun
>make it uge
>idk like 128 x 958mm R