I gotten past this eons ago, read past them and move on, maybe not the most technically correct term but everybody knows what they are refereeing to.
Someone (potential buyer) that may not know Mopars might understand the term frame-off and understand that it implies a detailed restoration.
I also feel Rotisserie Restoration may not be the best answer as the shell may have only be put on rollers and not actually on a rotisserie.
Frame-off has become synonymous with a full detailed restoration, the reality is if you pull the k-member you have removed the frame (maybe only a portion).
Again, move on.
Alan