Since our earlier messages, I inherited some CDs from a now-deceased family member. I was allowed to cherry-pick from his collection. He was a big fan of Telarc. There are bunch of them here, although not the two or three with Ozawa and the BSO. Lots of Erich Kunzel and Michael Murray.
Among them is Telarc's Saint-Saens Sym 3 with Ormandy. This may be Ormandy's last recording (1980). The deep organ pedals are there -- this is Telarc after all! -- but levels are low. I've never heard this piece in concert, so I don't know how true this is to something you'd actually hear.
Thanks for the pics of the organ. I'd be interested to see how the air is admitted to the pipes.