Another thing, it's... I want to say less wasteful, because the majority of the power usage in the Tank is devices that use only one power unit at a time, not two or three, so resupplying them would actually WASTE energy rather than be more ideal. If that WASN'T the case, which is for pretty much any other medium or larger craft, I WOULD be using the larger reactors.
That being said, I say again, a lot of this was more for the sake of a silly build leaning more towards aesthetic and concept over functionality and effectiveness. I even tested this in a Professional level area, and yeah, it's not a good combat craft, it'll almost always take more damage than I'd really care for, so it's by no means reliable. I DID replace either of those front-most thrusters with a shield generator and cut off some of the armor bits that were just never going to be of value, but it's still such a weak craft for its size, it's really just a showpiece, I have to say...