Yeah the phone is kind of big but hey at least you're not pressing things accidentally but anyways yes I have a custom recovery, dual actually philz touch and twrp here's the link on XDA for root recovery and deodex
http://xdaforums.com/xperia-z1/development/root-z1s-4-4-4-t2839990
FYI, once you get the recovery installed, to boot into it, you have to wait for green LED light and double vibrate happens and press either volume up for philz touch and volume down for twrp
NEWS FLASH : I read in a thread in the general forum that we're getting a custom ROM ? based off miui