But what if a choke isnt introduced will the GND level still remain the same my conductor is 17AWG
The fallacy about a wire is that it connects two points and make then the same. There is no such thing as a "hard connetion" any wire can be shown as a bunch of inductors and capacitors. If you pull your "power return" over any distance, the best you can do is hope that whatever is ground referenced in one end will appear ground referenced at the other all the time. I do not believe that 'hope' is a valid design criteria.

.. use an opto for the feedback signals .... but how to supress any undesired noise.
if you use non-ground-referenced signalling, you do not need to worry about "undesired noise" as far as ground to ground goes.

Erik