Share your experience!
I am sorry to tell you but only japanese versions of some of the Xperias have IR and Xperia ZL released worldwide.
Maybe this can help:
/t5/Xperia-Z-ZL-ZR/what-xperia-phones-have-ir-blaster-and-are-waterproof/m-p/626615#M37072

Sorry to bring bad news.