I used adaptive armor for my recent Sith, but I only used chest, legs and boots, along with two lightsabers. If I wanted to change all mods it was 55 planetary credits. Each armor and weapon used 11 (7+2+2). If you don't have enough its easy enough to get, warzone, go back and do previous planet heroics, etc. I played from level 20 to now level 51 using this armor.