DI + Reamp design, need help choosing op amp.

[TheWinterSnow]

Right now I am designing an all in one DI and Reamp device in one enclosure.  Because of grounding issues, it will have two separate and isolated power supplies, there for cannot use dual op-amps (well I could but I would prefer going to a single op).  I have been trying to look around to find an audio grade op-amp that has the same layout as the old LM741 but there isn't much on the internet of the topic.  Some of the OP and AD chips come up, but nothing that can be easily found on sites like Mouser or Digikey.  So what are easily available audio grade single op amps or should I stay with the 4558 and keep one portion open ended?

EDIT: My later idea won't work, definitely need 2 separate op amps

[TheWinterSnow]

I found the OPA134 and is actually on mouser, as well as the OPA2134 which I could replace the RC4558P I currently use for dual op situations.  Would there be anything better or is that a pretty good chip?