Sorry for the delayed response!
What size boxes do you have on your Langstroth? Deeps or mediums or both? I recommend running 8 frame mediums, as they will be closer to the dimensions of a Warre hive box. You can certainly bottom super (nadir) the Langstroth hive just like you would a Warre. You can also run the Langstroth without foundation in the frames. I do recommend using frames, just remove the foundation and add popsicle sticks into the slots at the top where the foundation would go.
Please let me know if any of this makes sense or if you have any other questions!