Here's a little "light reading" to introduce some seminal ideas on a non-traditional energy source.
Also, you may want to peruse this library of documentation of successful overunity devices and processes.
Well, okay then!
I'll lay in a supply of rubber rods and cat-skins, so that we can develop our own static charge generators.
(We may want to hold off on dismantling those Van de Graaf generators, eh guys?)
Anyone know a good source for Leyden jars?
In the meantime, we'll continue with the Gas-Cooled Nuclear Reactor/Rocket Engines, and I'll see if we can't get some additional boost from the exhaust by using a linear induction magneto-dynamic coil stack around the exhaust aperture. Consider it a type of afterburner.
We'll need the GCNR/RE for power production anyway. Maybe I'll increase from 132 to 460 shuttle-thruster engine pairs, with the excess mounted directly on the thrust ring and on the habitation modules themselves.
I'll have to set up some additional Useful element harvesting apparati on the "longboat" pods, but I think the Eniwetokians will appreciate it in the long run.