you can make it into a high excursion sub juzz for switching voice coils with cone assemblies. is the motor with the coil air gapth ,top plate,back plate, motor designs, etc. not juzz swapping cones will get you more excursion.
swapping cones can yield higher efficiency(spl) change on the Fs of the driver and power handling, also the main thing of changing coils is changing impedances.
i doubt u get a cone assembly with voice coil for that woofer. since those motors coils are around 1.5 inch in diameter that the commong for main streqm plus the diameter of the spider. etc.
you have to get a kit that is designed to work on the motor you have and basket.