Need a cam module for a Mach x bow
 

Hi I just recently bought a pse Mach X bow and i need a different cam module for my draw length. I went to a bow shop in town and they told me to look around on the internet to find one because it's hard to get one from pse. My bow has a NGRX cam the number on it is 7325R this is the cam that the modules can be changed without the use of a bow press. Right now it has a 9R80 module andI think I need a 7R80 module for my 27 inchdraw length.Anyoneknow whereI can get one????