I did think the dent was an odd shape for a speed bump, and I know we didn't do it when loading it on to the trailer, so a pothole would definitely explain it.
The alignment is good

I was a couple of degrees out on rear toe but mostly everything else was in spec before, and all is after. Slightly too much camber at the front, because its a little bit lowered, and caster is off at the front which is also normal when lowered and is solved by moving the subframe slightly.
It also drives very nicely and doesn't steer from the rear any more
Due to lockdown its now in storage for a bit