I want to install the tub below with surround. How can I install the surround on only two walls leaving the end open?
I wouldnt use this surround to modify.  The crown up top will not look right unless maybe there is a 3" bump out from the wall.  Surrounds are suppose to be quick and easy. This one is not cheap either. You should do it right and install tile it will probably be same price if not cheaper. Yes jetted tubs are suppose to have a dedicated circuit.