Just some sage advice, please don't take this the wrong way.
Slow down and reevaluate your stance on keeping fish and QT.
All fish should be quarantined, regardless of where they come from or how they look when you get them.
Throwing money at fish, only to have them become sick and die without treating them is irresponsible.
Look at it this way, the money you would spend on new fish, spend on a simple QT and meds. Later down the road buy some fish and quarantine them, treat them as necessary and introduce them to your DT. Healthy fish already in the DT won't get sick from the new arrivals and you save money in the long run and everyone is happy.
Patience is key in this hobby and this hobby isn't cheap. Think about it.