Since you are at the beginning of your journey with Subliminal Club, its better to run the standard titles from the main store.
You can add up to 20 modules, 10 being the minimum, of which 1-3 cores (some opt for more). The module that you purchased are forever yours to use in building costumes. Once you license one, you can use it again for your future builds, keeping in mind that there is a 99$ base cost to build one, even if you already using a fully per-licensed modules/cores.
Save up for khan is my suggestion, or perhaps you could run a foundational title such as Ascension or Primal. Remember that you get a 30% coupon for your first time purchase