The ball joint gaiter is split in several places, looking like it may have been split for some time. My bet is the joint is seized and the rotation of the steering has been twisting the joint pin, until metal fatigue has snapped it. We all need to check these gaiters regularly and replace once split.
Surprisingly, the steering effort will easily twist this pin, I've seen it before on Morris Minor, Marina and Ital where the bottom swivel seizes. A friend's car steered normally, but when the suspension leg was removed, we could not turn it with a 4 foot bar on it. Your steering puts a lot of effort here.
Good that you are getting a pair, make sure they are from the same manufacturer, then dimensionally they should be identical, even if not quite the same as OE.
As above, I'd recommend changing the brake hose, its had a bit of stress. As have you.
Check the strut has not distorted, especially the top of the rod, may have bent. Check the top mounting has not distorted. If it has, no amount of wheel alignment will ever compensate.
Despite National Tyres offer, I'd recommend a full 4-wheel alignment check. That will show if any other damage has been sustained.
Good luck.