Shocks replacement on a Rzr S

I own a 2014 Rzr 800EPS which I just bought the Super ATV S conversion kit. I’m replacing the shocks and am having a hard time finding Rzr S fox shocks. I’ve found a set of walker evan fronts and stock Rzr S Sach SHOCKS. I have a chance to buy some fox shocks off a Rzr 900 xp. Can I use these in the rear without any special brackets? Does anyone know if I can use the shocks off the 2015 trail 900 also to fit on my Rzr if these other shocks don’t work? Also I heard on here there’s someone that makes special brackets to use 900xp shocks on Rzr S. Anybody have there info?