I have just upgraded from standard WRX brakes with HEL braided hoses to K Sport 8 pots with their hoses and pads, seems a reasonable upgrade to me. When I had the HELs fitted i was told that they may not pass the MOT as their is a fitment/clip not on them that is on oem hoses. It did pass but might be worth checking before you fit them.
Great set of pictures - I like that!