Passacaglia und Fuge c-moll

Here it is: the fugue to the Passacaglia in C minor, which has been announced for a long time.
A very expansive fugue concludes the work, which lasts a good 10 minutes in total. The acoustic highlight are the pedal solos, both in the first and in the second part. In the fugue, we hear 2 voices simultaneously in the pedal. I wonder if an organist could ever play something like this?