ďbend through the butt section with a SH Ė DT5Ē
I would consider the ARE 3pc 11ft 2/3wt then. Not that the Echo isnít a nice rod, but the ARE will bend deeper with a lighter line. I currently donít have this ARE to test a DT5 for you at the house, but my daughter has asked for me to make a rod up for her on this very blank. I know of a couple of others that specifically use this rod with a DT5. However, your mileage may vary, etc.
If you can build the rod out yourself, your investment would be quite low.