I started with a QuadraVox emulation of both the Binson and Catalinbread Echorecs. Of course – because of the algorithm design – this will only cover the Echo Selector position; not the Repeat or Swell. That's why I follow it with something like your Slow Arpeggios preset above.
Do you mean you are using two H9's? What is missing in the Quadravox algorithm is the feedback of the repeats.