I set a click track and recorded my excerpt based on that, but I think it's a bit faster than Argent's tempo. I was going from memory, and it turns out I was a bit late for a few notes; otherwise, I think this is accurate.
I used the Bösendorfer Grand Imperial voice on my Nord Electro 5 because it's the closest I could get to Argent's Bechstein (which he uses for this piece in this excerpt from A Keyboard Approach and which is mentioned in these two interviews).