Howto flash Dual recovery on Sony Xperia Z1 having lollipop 5.0.2(Build 14.5.A.0.270)

Hi!I am using this Sony Xperia Z1 C6902. I have already rooted it with Kingroot and also have unlocked the bootloader. Now when I refer to various tutorials to flash custom recoveries like the dual recovery, I found out that those tutorials are meant for some other build ( e.g. .585).
So my question is...how can i flash the dual recovery if i have the above mentioned pre-requisities already available on my phone (the underlined ones) ?
Also could i get the method to flash Xposed framework after flashing the custom recovery ?
Please help me as soon as possible !