I'm absolutely sure what's in the Reputation store is hands-down better. But all of it is out of reach in the short term. Unfortunately for me, I simply can't play the game enough to grind anything. So "2-3 days" is about 2-3 months if not longer for me So I'm looking for a build that will work in the short term. Trust me, I salivate looking at the items from the Rep store!
I'm pretty sure the assimilated module is T2. So even with your limited playtime, it's just a couple of 20 hour cooldowns away. I'd say more like 2 to 3 weeks with the playtimes you've listed.