)
This... This deserves its own short story dedicated to it on FiMFic. I wish I was the one to write it!
As for where Equestria is, I suppose given the context here, it'd most likely be found in the Deep Periphery somewhere. If you accept _*The Thessalonica Legacy_*'s interpretation for the purposes of a _*BattleTech_*/_*My Little Pony: Friendship is Magic_* crossover, Equus is an alt-universe Terra.
Either way, Nicky K better keep his mitts off it. Actually, I wouldn't be surprised to find the files abonut the planet were deleted shortly after the SLDF departed; an effort to keep the locals safe from human-shaped outside context problems later on. That sounds like something General Kerensky might do, to me. lol