good luck with that, the drop rate is super rare to the point where you could play a dozen times and be luck and get all 3 pieces or spend the last month 8 hrs a day grinding over 3 toons and not see a single drop of the space tech.
Yeah i'm bitter and twisted about it been trying to get the full space set since launch and only seen 2 deflector drops, no engines, but have had 9 shield drops.
The drop rate is too random. If cryptic are afraid people will stop grinding when they get it thats silly as i susect like me its not one set people want for one ship they want mulitple sets to equip all their ships
If they can nerf/fix the maco/dominion sheilds because PvP'rs moan they are too strong then surely they can increase the drop rate for moaning PvE'rs who run STF's