I am looking for info on the S-300 missile, and you guys seem to be the experts.

Does anyone know (or can estimate) one or more of these:

Total fuel weight?
Pounds of thrust?
Duration of thrust?
If an aircraft approach it at very low altitude, does the missile fly directly towards it or does it snap up first, and dives down on it, to avoid obstacles and such?

..And does anyone have similar data for the BUK-M2?