it is not about AESA radars only.. IMO it is more about the Freedom of BVR weapons they can get and most important is the ToT to make those weapons locally, it will give Egypt an edge in case of a conflict..Some say that the latter was negotiating to make the whole planes locally, which is still a possibility, but it is also possible to let the planes be made in China and Pakistan as they are reliable allies who can provide spare parts anytime without constraints, and be satisfied with ToT for the air to air and air to surface missiles (That is where they need freedom mostly.. as France and Russia won't provide ToT for their weapons, let alone the US..).. but it can be both; making the fighters locally under licence and getting The necessary ToT for the weapons to be made locally.. in these cases.._ if china agrees_ the deal will most certainly go through.. I still remember in the Chinese proposal that they have offered Egypt a deal that (almost) can not be refused.. hopefully it included ToT for BVR weapons.. and it is important to understand that deals like this require a lot of sound and comprehensive studies and negotiations.. which take time.."patience is a virtue"..