Fuel should not have been in or near rockets unless they were being readied for launch. Also not good idea to store all missles close to each other so maybe they just arrived, and the fuel was also offlaoded from the same ship. Agin not good logistics.
Surface to air missiles are solid fuel rocket motors. They are cast during production. Just like the SRB's on the space shuttle. The biggie is the 70 kilo warhead. A few hundred 70 kilo warheads will make a most satisfactory display. Add tons of burning/exploding rocket motors and toss them around with explosions and it's bye bye air base.