We have both E-3D and Sentinel R1/ASTOR which would allow targeting. We should also have enough Typhoon to defend them, at least long enough to get data then retrograde. Who do you imagine can withdraw permission for the RAF to operate out of Akrotiri?
You are making many assumptions that we can forward deploy those assets without political cover from the UN, and the Russians and China will at present will veto any action in the Security Council. Also we do not have the assets to cover a 24 hour week long surveillance system. We lack tankers, C4INT and the number of Typhoons required to provide force protection. On the point of tankers we only have one VC 10 left, a few Voyagers, no strategic reconnaissance in the form of Airseeeker/Nimrod and Tristars/C 17s are required for the airbridge to Afghanistan.