In regard to the first issue, the phenomenon we refer to as "gravity" cannot be directly correlated with the electromagnetic, nor does it actually exist as a distinct force. There are no 'gravity particles,' for instance. This sounds paradoxical on the face of it until one begins to grasp that gravity is actually the by-product of only a particular *form* of electromagnetic expression --that being an electromagnetic accumulation that's become contained in, and as, a vortex. This is key.
I think this is because every individual electron is, itself also a vortex; so at the macroscopic level --say of a propulsive system-- when an EM vortex forms, it reflects, echoes and resonates with the underlying physics of electrified space and time. In brief --and I mean very, very brief : ) -- a coupling, or linkage is then formed that allows propulsion systems based on such a principle direct access to the scalar foundation of particle existence.
In other words, the generation of electro-gravitic force is not merely a question of generating "an electromagnetic power greater than the Earth(s)" in order to ensure flight.
There is another aspect to consider.
A bit more than a hundred years ago, when T. Townsend Brown was still a teenager, his (wealthy) family bought him an X-ray machine. This device was not professionally installed, and one of the electrical cables --that was equipped with a large "coke can" sized capacitor-- was left dangling, loosely suspended in the air near the machine. Brown noticed then that every time he turned it on, this capacitor would lurch toward its positive pole, then hesitate momentarily before relaxing back into its original position. Later, he deduced that this directional effect lasted only as long as the capacitor continued to charge.
Now, it's not widely recognized, but electrical currents always form double helixes of electrons as they flow, be it through wires or free space. ( In space, these are now referred to as Birkeland currents. (see: Electric Universe Model/Thunderbolts Project) So as Browns' capacitor was being charged, the electrons entering it were already in a spiraling pattern, thus forming a vortex...
Now consider how this might apply to a self-exciting, vortex-forming generator: Unlike Browns' conventional solid-state capacitor, this vortex literally represents what amounts to a *continuously* charging, continuously discharging capacitor --thus the directional force that's produced becomes equally continuous.
As to spreading such information "fast and wide" I wouldn't worry about that; the end of the old world order is approaching very, very quickly now. Much less than two years from now, we'll be able to buy as much mercury, gallium or indium as needed.