Never heard this performance, didn't know there was a K. Sanderling/Cleveland 9th. There is a BBC Philharmonic M9 on BBC legends, a Berlin SO (Old East Berlin) on Berlin Classics and a Phlharmonia from Erato (OOP) those are the only ones I know.
As for other Sanderling his M10 on Berlin Classics is stunning, one of the best despite using an earlier Cooke edition with some modifications by Sanderling.
His son Thomas has done a wonderful 6th, but I do not think it is available anymore.