Chimpie bought my HF-1. What a pleasure it was to deal with him! Very nice, great communication, and fast payment. I am so glad the HF-1 is going to a "good home," and seeing above that you got the Zhaolu, I'd gesture to say it will be a nice combination, even out of the Zhaolu headphone stage.
Good luck with it, ENJOY it, and thanks for a nice and easy deal.