Thanks for the kind remarks, everyone. I managed to hook up the Carista module and got a few error codes relating to tyre pressure monitoring and solar sensor, but I don't think they are anything to worry about. The tyres are not losing any air so it's just a few sensors I need to replace.
It's not rude at all, I am pretty sure I overpaid, but I really love the car and I'm a firm believer that If you are planning on keeping a car longer-term then paying a little more to get the car you want is worth it. I know the re-sale won't be so good on these, which means I won't be selling it anytime soon!
Let's just say I paid over £13k but under £15k for it 😓
Also, very sorry I didn't take more pics, this is just one I snapped as I was looking back at it when I parked! I will definitely take more.