hm.. so, I'm not getting an overwhelming response "go try this, no one has done it". It would definitely be the road less traveled. I have ruled out the Sowter attenuator transformers, as they cannot handle the signal without saturation. In fact, as aerius mentioned, any 100% mu-metal / permalloy solution will not work unless it's air gapped to support DC.
So, as far as the "coupling capacitor" hating crowd, which is worse:
1.) an attenuating resistor + coupling capacitor on output
2.) a transformer