A friend of mine used Touch Up Guys before to fix a couple of chip damages (he mentioned there was even a hole on the bumper), result was good. But I've seen mixed results at Whirlpool.
So I am going to give "Touch Up Guys" a call and get a quote, also try a proper respray -
https://propaintauto.com.au/bumper-bar-repairs/
Take it from there.
Most likely I'll give up the idea of DIY. I'd prefer to let the pros do the job and I'll use my professional skills to ear that money back LoL