Yes, go for it!
Several years ago I converted my DCs to ANR - strange to begin with but R/T and intercom are MUCH clearer. As an example: with ANR off I turn the headset volume knob fully up, with ANR on I turn the volume almost fully down.
If you DIY then save the extra cable and battery box by fitting a small slide switch to one ear cup and mounting the battery on the outside.
HFD