Thank you for the replies guys, I'm a bit of a newbie at it. Felt really stupid catching the alloy and didn't realize how much damage it would do hitting the curb at such a low speed.
It didn't really cross my mind about the tyres, I'll have a look into them if they're a bit dodgy. I guess I was too excited about the car to worry about what brand they are.
I've had a few quotes of around 100-180 to refurb the wheel, to be honest I kinda wanted to get 19" Santiago wheels (because I think they look a bit nicer) in the future and to sell the 18" Austin ones on, but that'll be a bit down the line. Also not sure if the ride will be impacted negatively with larger wheels.
Loving the car so far though!