“is feasible or practical to build patriot or nasam launchers in one or two missile configuration, say mounted in a truck to camouflage what they are?”
Yes, it is technically feasible to box them up, to look like regular shipping containers and mount them on regular trucks, but it would not be cheap or easy. This is being done with Intermediate Range (deep strike) Artillery weapons and cruise missiles (the Chinese do it too), but I have not heard of Air Defense missiles being configured like that yet.
Like always this war is changing the art of war. The idea of small mobile long range air defense (offense) system most likely was never considered
Just like having a large capacity to produce artillery rounds, we use air power….
Drones have changed everything nuff said don’t need to beat a dead horse , but what the response will be, the counter and counter counter …. measures will be and who developed them first will be crucial