Right now, the only pieces of Power Armor around in RP are less than twenty in number, trudging through the Mor'osi boondocks and soon to run out of power for all time. That's a far cry from what you're proposing, a massive space colony shipping tons of ores and such over vast distances.
If not on the matter of technology, then I will agree with Bustos on the matter of economics. The costs involved would bankrupt any such attempt, short of you buying out/destroying all of your terrestial competitors.