Lexus is200 sport rear brakes

Just had a friend bring his lexus is200 round with a rattling and grinding noise coming from nearside rear wheel area etc jacked the wheel up and starting to spin it round and the noise was horrible, my first thought was rear wheel bearing but upon removing wheel and disc and caliper assemble i found a small bracket all squashed up and mangled slighlty only thing i can see is where it could have come from is off the backplate and it holds the parking brake cable in place etc

Can this part be sourced on its own or do you have to buy a complete new backplate

strange engine that is lol
is that the rear fecked brake disc if so new pads and discs needed.
if one side of backing plate done other side might follow soon.
google might list suppliers and show item and sometimes fleabay?

Sorted it mate fabricated a replica off the other side because lexus dealer prices are totally extortionate prices to say the least even tho it dont really hold the cable too securely when its in ffs

aye i was looking at some prices holy crap.

Yeah well built cars but spare parts are so damn expensive for some reason :(

Brake layout if anyone needs it but not 100 % sure if its same on others ie IS300 etc