What cartridges under $800 outperform DL-103R?

I have a brass plate on my nude DL-103 and I'm ready for a change. I'm looking for more air and ambiance, but don't want to sacrifice extension on either end.

I'm debating whether to try Uwe's Panzerholz body on a 103R, or try something altogether different like a Dynavector 20XH, Sumiko Blackbird, Lyra Dorian, Zyx R50 Bloom. I had a Benz Glider L2 (0.4 mV) for a while, but didn't find it any better than the 103R. My tonearm is Micro Seiki MA-707.

Any insights or suggestions would be greatly appreciated.