Personally, I believe you to be far too optimistic in the time window for this, Windu...
There too far many problems to take care of at home first before we can even think of extra-solar explorations. Not the least of which is the current socio-political situations already mentioned.
My point about the power was basically this: If we can develop a machine capable of producing the types of power required rip the fabric of Einsteinian space-time and let us jump through higher dimensions, that machine will be hard-pressed to ever be used in that manner.
We currently have more than enough trouble keeping the lights on and the AC running in places like California during a heat wave. (And of course, with our current power-plant technologies... the cooler we try to make ourselves, the more we may be contributing to the root causes of the heat wave in the first place...)
A generator capable of producing multiple gigawatts on demand (especially if it is clean power) isn't going to be willingly sacrificed to space exploration by the general public far more interested in survival and personal comfort.
Once we solve some of the planet's pressing problems we may be able to put plans together to explore these types of things. But the resources needed to attempt travel of type you describe can't be put forward by a single nation. It will take a multi-national, and possibly a planetary effort to achieve these types of goals.
Native XWA.Netter (Nutter?)