Heh... the Russian dude was Godowsky, if we're thinking about the same things.
It's not actually a new arrangement of the Revolutionary... what Dreyschock did was just take Chopin's version, and render the left hand all in octaves...
I just returned from the piano, and to do this, he had to raise the right hand up an octave, as the extra note has to be the octave ABOVE the written left hand - either that, or his pianos in the 1800s had a bigger range than ours. Well, that, OR I could perform on a Bosendorfer Imperial Grand. Only practising would be a problem with only a standard 88 keyd piano...
But, I definitely will give it a go! Thanks for the encouragement!