Ah the great Lovro von Matacic. A Brucknerian of great ability.For the 7th I would like to suggest suggest Giulini/Vienna and Matacic/Czech. For the 9th again Giulini/Vienna.
Unfortunately I haven't been in a Bruckner mood for some years...
I heard him conduct several times in the RFH.
All of his Czech Philharmonic and NHK SO Bruckner recordings on Supraphon or Denon are very worthwhile imo, but sadly unavailable streamed afaik.
Luckily I have the CDs.