This is a fairly easy to obtain set for someone picking the game back up after a break. (Well, minus the defending ring. Just replace it with an augmented Dark Ring)
None of those pieces are HARD to get, but Dring really should be left out of most lower tier DT sets. It's not nearly as low drop rate as Mekira or a good Dark Ring, but when the cost of trying is 10M instead of waiting 8 hours, its not realistic for most people to have one.